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05-23-2014, 11:12 AM   #1
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Small Betterscan test

I just got my Epson V750 holder from Betterscanner ,and I thought about doing some quick test.
All scans are 3200DPI no sharpening no correction.
Camera Pentax 645N , 45mm ,Kodak Porta 400
First Epson scanner standard holder.


Second with Silverfast standard holder.


Vuescan standard holder.


Vuescan Betterscanner holder 1mm with ANR glass.


By the way Betterscanner don't sell V750 holder with T-locks anymore just with ANR glass ,in case anyone is thinking about getting there holders.

05-24-2014, 07:50 AM   #2
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hard to see differences at these resolutions - what is your conclusion? i 'scan' using good old copy stand with digital camera and macro lens. the film is on light box and on top is AR glass (i managed to get some set from Kaiser for enlarger, the set comes with two glass plates, one has AR treatment).
05-24-2014, 10:44 AM   #3
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Well you are right the difference is very small ,I think the one with the betterscan holder is a bit cleaner.
But the main plus of this holder is that it is no where near as flimsy as the epson holder plus the glass helps with the sagging of the film.
I still need to play some more with the holder to see if I can improve the scans ,one thing I did see is that the glass makes it more difficult to keep the scans dust free.
05-24-2014, 06:33 PM   #4
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Why are these scans at 3200dpi??
You are displaying on monitors between 72 and 110; the most that is needed unless printing (4800 downsampled to 300dpi at printer) would be 100-150dpi. A lot of corrections are required on these samples.

05-25-2014, 01:01 AM   #5
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QuoteOriginally posted by Silent Street Quote
Why are these scans at 3200dpi??
You are displaying on monitors between 72 and 110; the most that is needed unless printing (4800 downsampled to 300dpi at printer) would be 100-150dpi. A lot of corrections are required on these samples.
6x4.5cm @150dpi wouldn't give you good file to start with -> you would end up with file of resolution 354 x 265px

It's easier to scan at the highest optical resolution your device offers and then downsample rather than do it the other way around I 'scan' my 6x6 negs with 16mp camera - 6 captures per negative, then stitched to 60mp file or 'scanned' with digital back with resulting (after crop) ~25mp file.

Last edited by hexx; 05-25-2014 at 01:08 AM.
05-25-2014, 06:16 AM   #6
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QuoteOriginally posted by Silent Street Quote
Why are these scans at 3200dpi??
You are displaying on monitors between 72 and 110; the most that is needed unless printing (4800 downsampled to 300dpi at printer) would be 100-150dpi. A lot of corrections are required on these samples.
Well yes the scans need a lot of corrections ,but that was not the point of these scans ,it was to see what if any difference can be seen between the different holders and scan software ,I thought it better to look at the results in a Raw status (so as little messing about with things like ,sharpening ,exposure comp. and grain reduction as possible), to better see any difference from the negative holders.
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