I am using Vuescan to scan slides in on my Epson Perfection 2450.

The problem is when batch scanning the slides Vuescan thinks that I am scanning in 8 slides and not 4. Now when I scan it takes twice as long, I just need to be sure that Vuescan is just going to scan 4 slides, but I can't find anywhere to set it back to the expected 4 slides.

Starting out I got confused. I like Vuescan and thought the Professional version would allow me to configure the number of slides. I can't find the setting and I have found nothing in the documentation or online.

  • I have found that the Vuescan book alludes to the issue of batch scanning slides (search for "Multi crop") helpfully it mentions that this is a part of Vuescan that needs more work. I've followed it's suggestion on using the Custom setting to no avail, if only I could set it just scan 4 slides.
    – zeristor
    Dec 27 '12 at 3:02

If I understand your question correctly you place 4 slides in a transparency adapter, enable Multi Crop and then Vuescan recognizes (erroneously) that you want to scan 8 slides. Subsequently it starts scanning all 8 regions where it thinks slides are present.

To only scan the four slides follow these steps:

  1. Enable Batch Scan in the Input tab.
  2. Choose All in the Batch Scan options drop-down menu.
  3. Do a preview scan.
  4. After that choose List instead of All in the Batch Scan options.
  5. Now you have to find out what frame numbers the actual slides have. You can find this by varying the Frame number in the Input tab and noting the frame numbers that actually select a slide. Let's assume Vuescan recognized your 4 slides under frame #1, #4, #5 and #8.
  6. Now in the text box next to the Batch List option write down 1,4,5,8. This directs Vuescan to only scan these frames.

You can find more information on the commands in the Vuescan manual, especially on page 57 where the Batch List option is explained.

As my scanner is not supported on my OS anymore I don't have Vuescan installed to show screenshots, but these steps + the manual should be enough.

  • Having given up three years ago, I've got back into scanning slides and your advice makes sound sense. thanks
    – zeristor
    Sep 27 '15 at 22:14

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