Vuescan: Ensure full frame of each photo is captured when batch scanning?

[philipus]

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When batch scanning strips, is there some setting that ensures that the whole frame is captured in a strip? I find that even if I center the first frame properly there's a gradual shift in what the program captures so the last few frames in a strip have parts clipped.

 

If there is no such setting, can one for each roll somehow have the program calculate (eg. by doing a Preview) the distance between the frames and set that somewhere under the Crop tab?

 

I'm using an LS-50 btw.

 

cheers and thanks in advance

Philip

[plasticman]

When batch scanning strips, is there some setting that ensures that the whole frame is captured in a strip? I find that even if I center the first frame properly there's a gradual shift in what the program captures so the last few frames in a strip have parts clipped.

 

If there is no such setting, can one for each roll somehow have the program calculate (eg. by doing a Preview) the distance between the frames and set that somewhere under the Crop tab?

 

I'm using an LS-50 btw.

 

cheers and thanks in advance

Philip

 

My eyes popped-out when I saw this thread title, as it's a consistent problem that I sat down and decided to work out myself this very evening - I'm currently on frame 6 of a 12-batch scan testing whether my settings are now correct (so far so good).

 

Does the LS-5000 have the same holders as the 9000? If so - these are the settings I'm batch-scanning with right now (I simply set the scan area itself to be slightly larger in every direction than the image area). I'm always having some offset problem otherwise - losing a millimeter sliver at each end of the scan - usually not enough for me to finally decide to knuckle down and test different measurements. These settings seem to have finally done the trick! Hope they work for you.

 

UPDATE: by the time I got to the 12th frame I could see there was a very slight offset problem. I thought because the 7th frame is back to a 'zero' Y-position, the Y-offset would compensate for this, but the program actually treats the parallel strips as though they are one long continuous strip. My next attempt will set the Y-offset to .699 instead.

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[philipus]

funny coincidence, Swedes must be thinking alike!

 

Thanks for posting your settings.

 

I think I found a setting actually, Input | Frame Alignment. According to the manual this option:

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.

 

That should do the trick. And when I use the below settings, Vuescan performs an "Offset" according to the info bar at the bottom when I press Preview (Batch scanning Off).

 

Batch scan: Off

Frame offset: 0

Frame alignment: checked

 

The slight hitch is that I can't get it to work. Even after the Offset action, the later frames are clipped.

[250swb]

Try increasing the Crop/Border %?

 

Steve

[hoppyman]

Philip, one resource you might find useful is:

"The Vuescan Bible"by Sascha Steinhoff. Published by Rockynook. Mine came from Amazon.

I have yet to set my scanner up again (same as yours) so I can't check currently. However you might look at Crop size, Auto offset, X and Y offset as well as Border that Steve mentioned

[plasticman]

Try increasing the Crop/Border %?

 

Steve

 

This fixed it for me, together with the other changes I'd already made.

 

From the manual:

 

"This instructs VueScan to enlarge the image beyond the edge of the crop box. This added border is ignored when computing the color balance of the image.

 

This option is useful for adjusting the size or position of the crop box that may have cut off parts of the image you want to keep. Because border will extend the effective area that is cropped, it will tend to include areas of white (or black) in the resulting image; if these parts of the image were not ignored when computing color balance, they could skew the results.

 

Border is a percentage relative to the dimensions of the cropped area, up to the maximum size of the preview area.

 

Border can also be set as a negative value in order to reduce the size of the image."