bippi
Established
Hi,I´ve been using vuescan with my minolta scan dual II with good results. But I´ve been wondering how many passes do you guys make when scanning?
How many passes in vuescan
- Thread starter bippi
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wallace
Well-known
I do a single pass. Couldn't see any difference with multi pass. Maybe it depends on the scanner? Mine is a Polaroid 35plus.
Gradskater
Well-known
A single pass then a quick run through noise ninja was way more effective than multiple passes for me. I could only see a small difference with multiple passes in vuescan.
AzzA
Established
I've only use sinlge passes at the moment. I've compared single pass scans with multiple pass scans and have never seen a difference.
The amount of difference it makes might depend on the film used though. Im not sure.
The amount of difference it makes might depend on the film used though. Im not sure.
Ronald_H
Don't call me Ron
THere is a definite difference. But using noise ninja or similar does not only supress scanner noise, but grain as well. If you use multiple passes you decrease scanner noise only. 2 passes will mean the square root of 2 (1.41 times) less noice and so on. It really works when pushing shadow detail in slides a bit.
My own Scan Dual had alignment problems in the end when doing multiple passes.
My own Scan Dual had alignment problems in the end when doing multiple passes.
OldNick
Well-known
I use VueScan and a Scan Dual II and really couldn't find any difference except extra scan time when I tried multiple scans. Most of my work was done using older negatives and slides, which might influence the results. I settled on a single scan and it works for me.
Jim N.
Jim N.
Graham Line
Well-known
Scan Dual III and the Minolta software seems to produce a cleaner image with 2x scan. Going to 4x seems to make little difference in the final image other than taking longer.
Just did a batch of Kodachrome 200 & 64 from 1995 and the 2x scan was a clear improvement.
Just did a batch of Kodachrome 200 & 64 from 1995 and the 2x scan was a clear improvement.
Last edited:
bippi
Established
Hi,
Thanks for your replies. I´ve been doin 4x scans most of the time. Then I decided to do a 10x scan. It made no difference at all and that got me thinking that 4x scan might not help at all either. So I´m going to try make an 1x scan and 2x scan and see if notice any difference. Thanks again.
Thanks for your replies. I´ve been doin 4x scans most of the time. Then I decided to do a 10x scan. It made no difference at all and that got me thinking that 4x scan might not help at all either. So I´m going to try make an 1x scan and 2x scan and see if notice any difference. Thanks again.
joachim
Convicted Ektachome user
Scanning slides on my Nikon Coolscan IV, I use the multi exposure feature of vuescan. This scans every thing twice. Once the exposure is adjusted for the highlights, the second time for the shadows. Vuescan combines these two exposures.
This overcomes all problems associated with the limited dynamic range of the scanner (12 bit = 3.6). When you manipulate the files with curves, to e.g. lift shadow detail, the difference is blindingly obvious. Have a check whether vuescan supports this for your scanner.
Typically I write the files as 16-bit tiff.
bippi
Established
Do you know if this is possible with other scanners or just the nikon ones, I have minolta scan dual II?
joachim
Convicted Ektachome user
Check the vuescan documentation and see whether the box is there in your set up. You might need the professional version, but again, check the doc. The feature is called multi-exposure.
bippi
Established
Just wanted to let you know that the multi exposure box is there and I´m happy with the results.
Thanks for this guys..