Input Tab
This tab contains the options that control the inputs to VueScan from scanners, raw scan files and digital camera files.
- Input | Options
- Input | Task
- Input | Source
- Input | Files
- Input | Mode
- Input | Light box width
- Input | Light box height
- Input | Media
- Input | Media size
- Input | Media orientation
- Input | Paper width
- Input | Paper height
- Input | Preview area
- Input | Preview X/Y offset/size
- Input | Bits per pixel
- Input | Make gray from
- Input | Batch scan
- Input | Batch list
- Input | Frame number
- Input | Frame offset
- Input | Frame spacing
- Input | Scan from preview
- Input | Preview resolution
- Input | Preview dpi
- Input | Scan resolution
- Input | Scan dpi
- Input | Auto flip
- Input | Rotation
- Input | Auto skew
- Input | Mirror
- Input | Auto focus
- Input | Focus
- Input | Auto scan
- Input | Auto save
- Input | Auto print
- Input | Auto lamp off
- Input | Auto eject
- Input | Auto repeat
- Input | Number of samples
- Input | Number of passes
- Input | Grain dissolver
- Input | Frame alignment
- Input | Fine mode
- Input | Lamp
- Input | Overscan
- Input | Double feed detect
- Input | Paper protect
- Input | Adv. paper protect
- Input | Double feed recovery
- Input | Staple detect
- Input | Page border
- Input | Multi exposure
- Input | Lock exposure
- Input | RGB/Infrared exposure
- Input | Red/Green/Blue analog gain
- Input | Lock film base color
- Input | Lock image color
- Input | Blank page removal
- Input | Default folder
- Input | File type
- Input | TIFF file name
- Input | JPEG file name
- Input | PDF file name
- Input | Raw file name
Input | Options
Use this to indicate whether you want to see a simplified subset of the options (‘Basic options’), or all the commonly-used options (‘Standard options’) or all the more advanced options (‘Professional options’);
Basic Option: This option is always displayed.
Input | Task
Use this option to indicate the task you’re performing. Choose from “Scan to file”, “Copy to printer”, “Profile scanner”, “Profile printer”, “Profile film” and “Make IT8 target”.
A brief reminder of how to do each task is displayed in the lower left corner of the window.
Professional Option: This option is always displayed.
Input | Source
If you’ve got more than one scanner on your system, this lets you specify which scanner you want to use.
A special “scan from” source is from a disk file. On the Output tab, VueScan provides a special option to save the raw output of a regular scan to a file. This option lets you read that raw file as though you were scanning it.
If you set this option to “File”, then you’ll be able to enter a file name in the Input | Files option. The name can be a TIFF file from a previous scan, a JPEG or TIFF file from a digital camera, or a raw file from a digital camera. The name can’t be a PDF file.
Basic Option: This option is always displayed.
Input | Files
Specify the name of an image file that VueScan will read when you set the “Source” option to “File”. Usually this is a raw scan file you created with VueScan or a file from a digital camera.
Disk files can be scanned just like a normal scanner. The Input | Preview resolution and Input | Scan resolution options work just as you’d expect, so do the preview and crop options.
Disk files can be TIFF, JPEG, or raw files from digital cameras. These files are typically the output of a raw scan, but they can be any valid JPEG, TIFF or raw digital camera file.
You can also use the file dialog (press the ’@’ button) to select multiple files, or you can separate multiple file names with a semicolon.
Basic Option: This option is displayed when Input | Source is set to “File”.
Input | Mode
Use this option to specify the type of scan you want to make. This is automatically sensed on some scanners, but you may need to set it manually on others.
VueScan uses this option for two things:
1) To indirectly indicate whether the scan data comes from reflective media or transmissive media. Input | Media will be automatically set to the most recent setting for the selected mode.
2) To indicate the color space of the scan data (i.e. the color characteristics of the CCD and light that exposed it)
Basic Option: This option is displayed when the scanner has more than one mode and the scanner mode can’t be sensed by VueScan.
Input | Light box width
Use this option to specify the width of the light box that’s placed on the glass.
Basic Option: This option is displayed when using Light box mode.
Input | Light box height
Use this option to specify the height of the light box that’s placed on the glass.
Basic Option: This option is displayed when using Light box mode.
Input | Media
There are two lists of media, depending on whether you’re scanning paper (reflective media) or film (transmissive media).
Reflective media
When scanning paper, Input | Media is used to control whether the final image is color or black/white, continuous tone (photo), or bi-level (text).
When Filter | Descreen is set, a descreen filter will be applied. You can control the strength of the descreen filter with the Filter | Descreen dpi option.
Transmissive media
If you choose “Image”, this option indicates whether you’re using positive film (i.e. slides), color negative, or black/white negative film. This option causes the default film type to be changed, but also sets up the scanner for scanning orange-colored media (i.e. color negatives) by exposing the green and blue channels more than the red channel.
VueScan contains sensitometric data for 200 types of negative film and 4 types of slide film. If you’ve got something different, choose Kodachrome for K14 process slides, and Ektachrome for E6 slides. Note that these are old film data, and most older films have dyes that have faded. This is why it works best to use the Generic film type and choose Filter | Restore fading
Basic Option: This option is always displayed except when Input | Bits per pixel is set to 1.
Input | Media size
This option is used with flatbed scanners and document feeders to specify the size of the reflective media you’re scanning.
If using a flatbed and this option is set to “Maximum”, the largest possible size of the flatbed glass will be used. For most scanners, this is 8.5 inches wide and 11.7 inches long. This is larger than both 8.5x11 and A4 and lets you use all of the area of the glass, usually for scanning multiple photos.
If using a document feeder and this option is set to “Auto”, the full size of the paper will be previewed and the location and size of the media automatically determined. The scanner will stop scanning when VueScan detects that it has scanned the whole document, photo or receipt.
If “Custom” or a specific size are chosen, no preview is necessary when you press the Scan button. This will save a significant amount of time.
Basic Option: This option is displayed when using reflective media (i.e. paper).
Input | Media orientation
This option is used with flatbed scanners and document feeders to specify the orientation of the reflective media you’re scanning.
When the media size is set to a size that has two possible orientations, Portrait (height larger than width) or Landscape (width larger than height), you can choose the orientation to use with this option.
Basic Option: This option is displayed when using reflective media (i.e. paper).
Input | Paper width
When media size is set to Custom with reflective media, this option is used to specify the width of the paper.
Basic Option: This option is displayed when using reflective media (i.e. paper) and Custom media size.
Input | Paper height
When media size is set to Custom with reflective media, this option is used to specify the height of the paper.
Basic Option: This option is displayed when using reflective media (i.e. paper) and Custom media size.
Input | Preview area
The preview area is the subset of the total scan area that gets scanned to produce a preview. This option can be set manually, set to the maximum possible or set to the default area for the scanner.
Note: if you set a smaller preview area, the scanner head will move only far enough to cover that area. This can reduce the amount of time needed to scan, especially on flatbed scanners. Because the stepper motor that moves the scan head is often the factor that limits speed, it also makes sense to orient images in landscape (and set the preview area accordingly).
Professional Option: This option is only used for transparency scans.
Input | Preview X/Y offset/size
These options describe the size of the preview area. They are relative to the upper left-hand corner of the image, negative, or slide.
Professional Option: This option is displayed when Input | Preview area isn’t set to “Maximum”.
Input | Bits per pixel
This option specifies how many bits per pixel are read from the scanner. The more bits that are read, the higher quality the image, but the slower the transfer speed at full resolution. If you specify a value that the scanner isn’t capable of, the closest valid option is used instead.
Scanning at 24-bit resolution can add gaps to the final image histogram (compared to 48-bit resolution), but it can also speed up scanning with some scanners and often the end result is virtually indistinguishable from 48-bit scans.
If this option is set to “Auto”, the Input | Media option controls the number of bits per pixel and samples per pixel used in a scan.
Professional Option: This option is always displayed.
Input | Make gray from
This option specifies how to make the gray color from the scanner’s red, green, blue and infrared sensors.
The default, “Auto”, either uses the scanner hardware to convert from the color CCD to gray, or converts in VueScan, mostly from the green channel.
Otherwise, the gray color is taken from either the red, green, blue or infrared channels. Using the red or infrared channel can be useful when scanning older, degraded black/white negatives that are silver based.
Professional Option: This option is displayed when scanning with 8-bit or 16-bit gray.
Input | Batch scan
If you set this option to “All”, pressing either the Preview or Scan button will preview or scan all the frames in the scanner. By setting it to “List”, you can specify a list of frames to preview or scan.
If you set this option to “Auto” and you’re using the Crop | Multi crop option, VueScan will automatically detect the list of frames that are visible in the preview.
Note that you can change this to “Off” during a long-running batch scan, this will then stop scanning when the current frame is completed (this is a better way to stop than by pressing the Cancel button button, as this will leave files half-written).
Batch scanning also works when scanning from disk files. In this case, the “All” option refers to all disk files named using a series of numbers (e.g. scan0001.tif, scan0002.tif, etc.). If the “scan0001.tif” file in the series is specified as Input | Files, the Input | Frame number will cause VueScan to reference the file with the same number.
Basic Option: This option is displayed when the scanner is capable of batch scanning or when you set Crop | Multi crop.
Input | Batch list
You can specify multiple frames by selecting multiple frame numbers, or a range of frames like “1-3”, or a combination of both (i.e. “1,3,5-7” causes frames 1,3,5,6,7 to be scanned).
You can also add an additional rotation to any frame or range of frames by putting a letter along with each frame number. Use “N” for no rotation, “L” for left, “F” for flip, “R” for right, and “D” for default rotation. The letters may be in upper or lower case.
For example, adding “3r” to the batch list means scan frame 3 and rotate it 90 degrees to the right, “2L” says to scan frame 2 and rotate it 90 degrees to the left, “1F,2L,4R” says to scan frame 1 flipped, frame 2 rotated to the left, and frame 4 rotated to the right. If no letter is specified (or if “D” is used), then the last rotation setting in the batch list will apply for all subsequent frames.
Using Batch list, you can also preview a group of images in one step, rotate and crop each previewed frame, and then scan all the frames in the batch. The process is:
- Specify the batch list. For example, specify “1-6” to specify 6 frames in a film holder.</li>
- Preview the batch. All six frames will be previewed.</li>
- Change Input | Frame number to view each previewed frame. Adjust rotation and cropping for the frame. When done, move to the next frame.</li>
- Scan the batch. VueScan will create a series of cropped files (e.g. “crop0001.tif”, “crop0002.tif” … “crop0006.tif”).
Basic Option: This option is displayed when Input | Batch scan is set to “List”.
Input | Frame number
If you have a film scanner that can move the film holder, you can use this option to select which slide or negative frame you want to scan. This option will only be displayed if your scanner supports it.
There are several advanced uses of Input | Frame number to consider when setting Input | Source to “File” or using the Crop | Multi crop option.
When scanning from disk files, VueScan will consider a number at the end of the Input | Files as the starting point in a series, and Input | Frame number to reference a file relative to that starting point. So if you have scanned a whole roll of film and have raw files “scan0001.tif” through “scan0030.tif” you may specify “scan0001.tif” as Input | Files, and then use Frame number to work on different scanned files as though they were frames. Frame number 18 would then use the disk file “scan0018.tif” as the source when you press Preview or Scan.
Frame number may also be used if you have set up Crop | Multi crop. Frames are counted from top to bottom, then left to right.
Basic Option: This option is displayed when the scanner has hardware that supports this, or when using Crop | Multi crop.
Input | Frame offset
This option sets an offset for the start of the each frame on a film strip on the Nikon LS-30, LS-40, LS-2000, LS-4000, LS-8000, LS-9000 scanners, the Canon FS4000 when the strip film adapter is used, and the SprintScan 120 when the Medium Format adapter is used.
Use this option if there is some leader on the film strip, or if you’re scanning panoramic frames and need to scan what would otherwise be the gap between 35mm frames. This option can be either a positive or negative number.
The units for this option are normally millimeters, but this can be changed with the Prefs | Crop units option.
Standard Option: This option is displayed when the scanner is capable of frame offsets.
Input | Frame spacing
This option sets the spacing between frames for some film scanners that support this in hardware. It is not available for most film scanners or flatbed scanners. This is the distance between the starting positions of two consecutive frames.
The units for this option are normally in millimeters, but this can be changed with the Prefs | Crop units option.
Standard Option: This option is displayed when the scanner is capable of frame spacing.
Input | Scan from preview
When turned on, pressing the Scan button won’t actually move the scan lamp but will instead do the same as pressing the “Save” button (i.e. read the pixel data from the most recent preview).
Professional Option: This option is displayed when the scanner can scan the same media more than once (i.e. when not using a document feeder).
Input | Preview resolution
Use this option to specify the resolution the scanner will use when performing the preview scan.
If set to “Auto”, a resolution will be chosen that results in a preview with roughly one million pixels. The exact number of pixels depends on the resolutions your scanner is able to produce.
If set to “Custom”, the resolution is selected by the Input | Preview dpi option.
You can also select a specific preview resolution from the list.
Lower resolutions may take less time to scan, and will use less memory. The preview resolution needs only to be enough for you to determine appropriate cropping, filter settings, color settings and so on; the result of the final scan is determined by Scan resolution and other settings, not Preview resolution.
Standard Option: This option is displayed when the scanner is capable of scanning the same paper or film multiple times and when Input | Scan from preview is turned off.
Input | Preview dpi
If Input | Preview resolution is set to “Custom”, the scanner will use a hardware-supported resolution that is greater than, or equal to, this value. VueScan will rescale the image to the requested resolution.
Note that this uses simple rescaling, so if quality is an issue, you should use an external image editor to rescale the image.
Standard Option: This option is displayed when Input | Preview resolution is set to “Custom”.
Input | Scan resolution
Use this option to specify the resolution the scanner will use when performing the final scan.
If set to “Auto”, a resolution will be chosen based on whether it’s a reflective scan or a film scan. The exact number of pixels depends on the resolutions your scanner is able to produce – the number of pixels is displayed in the status area of the VueScan window.
If set to “Custom”, the resolution is selected by the Input | Scan dpi option.
You can also select a specific scan resolution from the list.
Standard Option: This option is always displayed.
Input | Scan dpi
If Input | Scan resolution is set to “Custom”, the scanner will use a hardware-supported resolution that is greater than or equal to this value. VueScan will rescale the image to the requested resolution.
Note that this uses simple rescaling, so if quality is an issue, you should use an external image editor to rescale the image.
Standard Option: This option is displayed when Input | Scan resolution is set to “Custom”.
Input | Auto flip
If this option is set, the page orientation is flipped every time an image is saved. This is to allow easier scanning of books and magazines.
Professional Option: This option is always displayed.
Input | Rotation
This option describes the orientation of the images in the Preview and Scan tabs and in TIFF, JPEG, PDF, Index and Raw files. This is relative to the unrotated image that comes from the scanner.
If you select ‘Auto’, VueScan will attempt to detect the orientation of scans. If the scan contains sufficient text, the orientation of this text will be used to select the rotation (but only for reflective media). If the scan contains an image, either a photo or a film image, VueScan will attempt to find the orientation of the image, using a trained neural network.
Don’t have much memory on your system? Set this option to “None” and rotate the image later with an image viewer - this will make the cropping faster. Using “Right” rotates 90 degrees clockwise, using “Flip” rotates 180 degrees, and using “Left” rotates 90 degrees counterclockwise.
Note that rotation happens after mirroring.
Standard Option: This option is always displayed.
Input | Auto skew
Use this option to automatically compute the skew angle for images that aren’t quite straight.
Professional Option: This option is always displayed.
Input | Mirror
This option mirrors images left/right before rotating. This lets you position your film emulsion side up or down.
Standard Option: This option is always displayed.
Input | Auto focus
Set this option to enable a focus before doing a preview or scan (or both). The scanner will focus on the point specified by Crop | Focus X/Y offset. This location is visually represented by small circle containing ‘Focus’ in the Preview tab after a preview scan is created.
Set to “Preview” so that focus will only be done once if the scan is to be created directly after the preview. Otherwise, set to “Always” or to ensure the most accurate focus (as in some cases the heat generated by the preview can cause the media to bend).
If you have locked exposure and turned off auto-cropping (see “Advanced Workflow Suggestions”) no preview will be performed. In this case, you must focus at scan time, so either “Scan” or “Both” will ensure focusing.
Professional Option: This option is displayed when the scanner is capable of auto focus.
Input | Focus
Set this option to a value between -1 and 1 to manually change the device focus. The nominal value for most scanners is 0.
Professional Option: This option is displayed when the scanner is capable of auto focus and when Input | Auto focus is set to “Manual”.
Input | Auto scan
If this option is set to “Preview” or “Scan” and if the scanner can sense when an image is inserted, VueScan will simulate pressing either the Preview button or Scan button when an image is inserted.
This option is reset to “None” if you press the Cancel button
Professional Option: This option is displayed when the scanner can sense inserted media or when the scanner is capable of addressing frames separately.
Input | Auto save
If this option is set to “Preview” or “Scan”, VueScan will save files after a preview or scan is completed. If set to “None” files will be saved only after pressing the Save button.
In most cases, this option should be set to “Scan”.
Professional Option: This option is displayed when TIFF, JPEG, PDF, OCR Text, Index or Raw files are being saved.
Input | Auto print
If this option is set to “Preview” or “Scan”, VueScan will print after a preview or scan is completed. If set to “None” scans will be printed only when you choose the “File | Print image” command.
In most cases, this option should be set to “Scan”.
Professional Option: This option is always displayed.
Input | Auto lamp off
This option controls when the lamp in the scanner is turned on and off. It is only displayed when a scanner that is capable of controlling the lamp independently from the scan is selected.
Option Startup Exit Auto lamp off ======= ======= ==== ============= None no action no action none Always no action lamp off end of scan 5 minutes lamp on lamp off 5 minutes Exit lamp on lamp off none
When “None” is selected, the lamp is turned on at the start of a scan and is never turned off.
When “Always” is selected, the lamp is turned off at the end of a scan and turned off when VueScan exits.
When “5 minutes” is selected, the lamp is turned on when VueScan starts, turned off when VueScan exits, and turned off 5 minutes after the end of a scan.
When “Exit” is selected, the lamp is turned on when VueScan starts and turned off when VueScan exits.
Professional Option: This option is displayed when the scanner’s lamp can be controlled.
Input | Auto eject
This option controls when the media is ejected (assuming the scanner is capable of ejecting media). It can be ejected after a preview, or a scan, or when VueScan exits.
The media can be ejected manually with the “Scanner | Eject” command.
When Input | Batch scan is set, ejection will occur after the batch is complete.
Professional Option: This option is displayed when the scanner hardware can eject the media.
Input | Auto repeat
This option will simulate repeatedly pressing the Scan button after a time delay.
Professional Option: This option is always displayed.
Input | Number of samples
This option is available for scanners that support multi-sampling. As the scanner head passes over the media it makes multiple exposures for each location. The results for all samples are averaged.
This is a useful feature because any one exposure may be inaccurate, resulting in noise in the output. Noise will appear as one pixel whose color or tone is different than surrounding pixels. By taking multiple samples and averaging the results, the effect of inaccurate exposure is reduced.
This option will slow down scanning because the scanner is doing more. You should experiment with your scanner to see which balance of speed and accuracy is appropriate.
Number of samples is similar to Number of passes. Multi-sampling is preferable as the scanner head is positioned once, which ensures that the same area will be exposed for each sample. Multi-sampling is available only on a limited number of scanners.
Professional Option: This option is displayed when the scanner is capable of multi-sampling.
Input | Number of passes
This option provides a similar function as the Number of samples option, but does not require the scanner to provide hardware support for multi-sampling. Each pass causes a full scan. After all passes are complete, the results are averaged, and the average is saved.
This is a useful feature because any one exposure may be inaccurate, resulting in noise in the output. Noise will appear as one pixel whose color or tone is different than surrounding pixels. By taking multiple passes and averaging the results, the effect of inaccurate exposure is reduced.
This option will slow down scanning because the scanner is doing more. You should experiment with your scanner to see which balance of speed and accuracy is appropriate.
On multiple passes the scanner head needs to be repositioned precisely at the same location as where it started on the previous pass. Some scanners do not support this operation. Others do, but reposition incorrectly, which will cause a blurred result.
Professional Option: This option is displayed when the scanner is capable of scanning the same image more than once and when not scanning from a file.
Input | Grain dissolver
This option is only displayed when using the Minolta Scan Elite 5400. It causes a translucent material to be inserted in the light path, which makes the light source more diffuse. It can slightly reduce the appearance of film grain at the cost of longer scan times. By default, this option is turned off.
Professional Option: This option is displayed when the scanner has a grain dissolver.
Input | Frame alignment
This option is only displayed when using a Nikon LS-30, LS-40, LS-50, LS-2000, LS-4000 or LS-5000 with the strip film adapter. It causes VueScan to align the start of the frames by scanning the area between the first and second frames on the strip and then finding the initial 2 mm of clear leader. By default, this option is turned on.
You can use this with negative film (the default) or slide film. This is because the gap between the frames with negative film is orange colored, and the gap between the frames with slide film is black.
Professional Option: This option is displayed when the scanner has a strip film adapter inserted.
Input | Fine mode
This option is used to improve the scan quality on some scanners.
When using the Nikon CoolScan 5000 (LS-5000), CoolScan 8000 (LS-8000) or CoolScan 9000 (LS-9000), this option causes only one CCD line to be used, which makes scans take longer but sometimes improves the scan quality of very dark media.
When using some Brother, Canon, Fujitsu, HP and Samsung scanners, this option disables in-scanner JPEG compression of scans, which makes scans take longer but sometimes improves the scan quality by eliminating subtle JPEG artifacts.
Professional Option: This option is displayed with some Nikon scanners and some scanners that support in-scanner JPEG compression.
Input | Lamp
Some scanners allow scanning with two different lamps or both lamps.
This option is used to emphasize the texture in paper scans on Epson scanners. It does this by turning on a lamp that illuminates the paper from an angle, throwing a shadow where there’s texture.
It also lets you scan paper or transparencies with different colored lamps with the G4010 and G4050, for specialized color post-processing.
It currently is enabled on the Epson Perfection V600, V700, V750, V800, V850 and on the HP Scanjet G4010 and G4050.
Professional Option: This option is displayed with some Epson scanners.
Input | Overscan
This option is used to scan a few extra millimeters around the image. This is useful when scanning photos or postcards when you want to get every bit of the image in the scan.
Professional Option: This option is displayed when the scanner has a document feeder that supports this in hardware.
Input | Double feed detect
This option is used to detect when more than one page at a time feeds into a document feeder. Sometimes pages or photos stick together when feeding into a document feeder, and the scanner will stop scanning when this happens so you can feed the pages again and restart the scan (with the Scan+ button).
Professional Option: This option is displayed when the scanner has a document feeder that supports this in hardware.
Input | Paper protect
This option is used to protect documents from damage when scanning by more gently feeding, albeit a bit slower.
Professional Option: This option is displayed when the scanner has a document feeder that supports this in hardware.
Input | Adv. paper protect
This option is used to protect documents from damage when scanning by more gently feeding, albeit a bit slower.
Professional Option: This option is displayed when the scanner has a document feeder that supports this in hardware.
Input | Double feed recovery
This option is used to recover from double feeds.
Professional Option: This option is displayed when the scanner has a document feeder that supports this in hardware.
Input | Staple detect
This option is used to detect staples on a page being scanned.
Professional Option: This option is displayed when the scanner has a document feeder that supports this in hardware.
Input | Page border
This option adds a 5 mm border around the scanned page.
Professional Option: This option is displayed when the scanner has a document feeder that supports this in hardware.
Input | Multi exposure
This option provides a way to get additional detail from the darker parts of the scanned image. It is available on scanners that are able to increase the CCD exposure time.
A first pass is performed as usual with the normal RGB exposure. This will be an appropriate exposure for the image as a whole. Then a second pass is performed with a longer exposure, which can reveal additional detail in dark areas not captured in the first pass. VueScan then merges the results of the two by choosing from either the first or second exposure pass.
Professional Option: This option is displayed when the scanner can control the CCD exposure time and when scanning slide film (not Color negative or B/W negative).
Input | Lock exposure
Set this option to lock the CCD exposure values to auto-exposure values computed for the most recent preview or scan, or as adjusted manually with the Input | RGB exposure option.
This option can save time when scanning a batch of images with similar characteristics, e.g. a roll of film.
If you turn on this option and also clear Crop | Auto offset, then the Scan button will not perform a preview scan. This can save time when batch scanning.
Note that locking the CCD exposure values doesn’t lock the brightness of the final images - it only locks the brightness of the raw scan files. To lock the brightness of the final images, use the Input | Lock image color option.
See the “Advanced workflow suggestions” section of this Manual for more information.
Professional Option: This option is displayed when the scanner can control the CCD exposure time.
Input | RGB/Infrared exposure
On scanners that are able to vary the CCD exposure time, this option lets you multiply the exposure time by a user-specified value. This can be useful when scanning very dark slides with bright highlights and you want to get more detail from the dark areas.
There’s seldom any reason to increase these values from those computed by the auto exposure.
If the CCD is over-exposed when scanning color negative film, then the film base color gets messed up and the dark areas of the image (the bright parts of the negative) will lose detail.
Note that these exposure values do not directly control the brightness of the final image - this is controlled by options in the Color tab. These exposure values control the brightness of the raw scan file only.
Professional Option: This option is displayed when the scanner can control the CCD exposure time and the Input | Lock exposure option is on. The infrared CCD exposure time is only displayed if the hardware is also capable of infrared scanning.
Input | Red/Green/Blue analog gain
On Nikon scanners, this option multiplies Input | RGB exposure by the per-color analog gain. You can change the analog gain options to change the ratio of the CCD exposure times for the red, green and blue channels.
Note that “analog gain” is Nikon’s term for CCD exposure time. It doesn’t actually vary the analog gain within the scanner.
Professional Option: This option is displayed when the scanner is capable of separately controlling analog gain.
Input | Lock film base color
This option locks the color of the film substrate to values calculated at the most recent preview or scan. These values are displayed in the “Color | Film base color” fields when this option is set.
Negative film has an orange tone that needs to be compensated for to produce the positive image. You can see this orange color by looking at an unexposed (clear) area of developed negative film.
For a given film type and roll of film (all of which is developed under the same conditions), this correction will be the same for all frames, so only needs to be set once.
This option is only available after Input | Lock exposure is set, and then after a preview or scan.
This option can save time when scanning a batch of images with similar characteristics, e.g. a roll of film.
See the “Advanced workflow suggestions” section of this Manual for more information.
Professional Option: This option is displayed when using the Advanced Workflow Procedure in this Manual.
Input | Lock image color
This option locks the black and white point used in the most recent preview or scan. This is useful after scanning the first image of a series and you want to make the lighting consistent in future scans (especially when scanning panoramas). This option is only displayed if you first set the Input | Lock exposure option and the Input | Lock film base color option.
See the “Advanced workflow suggestions” section of this Manual for more information.
Professional Option: This option is displayed when using the Advanced Workflow Procedure in this Manual.
Input | Blank page removal
This option causes blank pages from a document feeder to not be saved or printed.
Professional Option: This option is displayed when using a document feeder.
Input | Default folder
This is a mirror of the Output | Default folder option.
Input | File type
This is a mirror of the Output | File type option.
Input | TIFF file name
This is a mirror of the Output | TIFF file name option.
Input | JPEG file name
This is a mirror of the Output | JPEG file name option.
Input | PDF file name
This is a mirror of the Output | PDF file name option.
Input | Raw file name
This is a mirror of the Output | Raw file name option.