This tab contains the options that control the raw data coming from the scanner.
If you set this option to "Disk", then you'll be able to enter a file name in the "Disk file name" option.
Disk files can be scanned just like a normal scanner. The "Device|Preview resolution" and "Device|Scan resolution" options work just as you'd expect, the preview works as you'd expect, and all the crop options work as you'd expect.
Disk files can be either tiff files or jpeg files.
E-mail 600 x 400 JPEG Web page 800 x 600 JPEG Printer 1600 x 1200 JPEG Editor 2048 x 1536 TIFF Archive 3000 x 2000 TIFF
When scanning paper, the media type is used to control whether the final image is color or black/white, and whether the image is continuous tone (photo), halftone (magazine or newspaper) or bi-level (line art or text). When media type is set to Magazine or Newspaper, a color (magazine) or black and white (newspaper) descreen filter will be applied and scan output resolution will be limited to 75dpi. With Newspaper, output images will be black and white (no color).
When scanning film, this option indicates whether you're using positive film (i.e. slides), color negative film, 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. negatives) by exposing the green and blue channels more than the red channel.
If you choose "Image", no film correction is used, and the cropped file will look as much like the original image as possible. If you choose "Negative film" or "Slide film", the cropped image will look as much like the original scene as possible and the Color tab lets you choose the film manufacturer, the film brand, and the film type.
The difference between "Image" and "Slide film" is subtle. If you take a picture of the same scene with Kodachrome and Ektachrome film and scan them with the "Slide film" setting, VueScan tries to make the resulting scan look the same (i.e. to resemble the original scene). If you use the "Image" setting, the resulting scans will look different and will reflect the slightly different color characteristics of Kodachrome and Ektachrome film.
If you then took a picture of this same scene with Kodak Gold color negative film and scanned it using the "Negative film" setting, the resulting scan should look close to the scan you get from using the "Slide film" setting and scanning the Kodachrome and Ektachrome slides (i.e. all three should look like the original scene).
VueScan contains sensitometric data for 200 types of negative film and 4 types of slide film. If you're scanning other types of slide film, choose Kodachrome for K14 process slides, and Ektachrome for E6 process slides.
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.
Note that you can change this to "Off" during a long-running batch scan, and this will stop scanning when the current frame is done (this is a better way to stop than pressing the Abort button, since this will leave files half-written).
You can also add an additional rotation to any frame or range of frames by putting a letter along with each frame number (i.e. "3r" says to 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" or "D" is used), then the default setting of "Device|Rotation" is used for all subsequent frames. This lets you set "Device|Rotation", set "Device|Batch list" to "1-99", press the Preview button, individually adjust the rotation and cropping of each frame and then press the Scan button to scan each frame in a batch.
You can use "N" for no rotation, "L" for left, "F" for flip, "R" for right, and "D" for default rotation.
In addition, if you've set up either "Crop|X images" or "Crop|Y images" to a value greater than 1, this option can be use to select a frame within an N x M array of frames.
For instance, when scanning a 4-frame negative strip on the PhotoSmart or on a flatbed, you can set "Crop|Y images" to 4. When you do this, the "Device|Frame number" option can be set to any value from 1 to 4. Note that you have to set "Crop|Y spacing" to the spacing between the starting position of each frame (usually 38 mm for strip film and 50 mm for an array of slides on a flatbed).
When you preview any one of these 4 frames, the entire strip will be scanned once.
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.
With the LS-40 and LS-4000, the starting position of a frame is affected by how the start of each frame is related to the sprocket holes. There's no automatic alignment of the start of the frame with the sprocket holes in the current version of VueScan, so it's best to iteratively set the frame offset for each film strip by doing a preview of frame 2 and estimating the number of millimeters that need to be offset.
You can get a more exact estimate of the frame offset by moving the mouse over the preview while holding down the control key.
The units for this option are normally millimeters, but this can be changed with the "Crop|Crop units" option.
The units for this option are normally millimeters, but this can be changed with the "Crop|Crop units" option.
If set to "Auto", a resolution will be chosen that results in a preview with roughly one million pixels.
If set to "Auto", a resolution will be chosen that results in a scan with roughly four million pixels.
If you 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 go a lot 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.
This option is reset to "None" if you press the "Abort" button.
Note that the PhotoSmart scanner doesn't align multiple scans very well because of the way it uses rubber rollers to move the film or slides. For this reason, this option isn't useful on the PhotoSmart.
Other scanners (such as the Polaroid SprintScan 4000) have registration problems of a few pixels between each scan pass.
Pixels that are near saturated pixels on the long pass aren't merged with the scan. This reduces the problems of CCD blooming - saturated pixels spilling into nearby pixels. However, some CCD's have a severe problem with charge bleeding from saturated pixels to nearby pixel, causing a problem where dark areas are adjacent to bright areas.
Note that this option sometimes produces image artifacts near sharp transitions between dark and light areas, and should be used with care. It works better on some scanners than others, and it isn't recommended as a default option.
If you turn on this option and clear "Crop|Crop auto position", then the "Scan" button won't first do a preview scan. This can save time when batch scanning.
See the "Advanced workflow suggestions" section of this User's Guide for more information.
There's seldom any reason to increase these values from the values 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 parts of the image (the bright parts of the negative) will lose detail.
See the "Advanced workflow suggestions" section of this User's Guide for more information.
See the "Advanced workflow suggestions" section of this User's Guide for more information.
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