kodachromeproject.com Forums  

Go Back   kodachromeproject.com Forums > Kodachrome, Scanning and Output

Thread Tools Search this Thread Display Modes
Old 01-08-2012, 11:47 AM
KodaMan KodaMan is offline
Junior Member
Join Date: Jul 2010
Posts: 8
KodaMan is on a distinguished road
Default Achieving accurate Kodachrome color reproduction without calibration target...?

Howdy guys.

Recently I've been considering scanning my collection of Kodachrome slides. You all know that Kodachrome is challenging to digitaze, mostly because of the tendency to scan with the blueish cast.
Using color calibration with a Kodachrome target solves the problem, but...

1) ...calibration targets are very expensive, making calibration a significant investment...

2) ...my collection is very small, which makes buying the target even less sensible.

So, here's my question: is it possible to achieve accurate color reproduction without calibration? For example - is it possible to 'copy' the calibration files from somebody who calibrated his scanner?
Has anyone here ever used calibration with Kodachrome?

I'm using CanoScan 8800F and Silverfast.

Reply With Quote
Old 02-17-2012, 11:33 AM
kevinkar kevinkar is offline
Join Date: May 2009
Posts: 75
kevinkar is on a distinguished road

I have. I bought the Silverfast calibration target. It does indeed help. It's not foolproof though. It sometimes fails to generate proper output resulting in additional fiddling and correction. That's why I also use Vuescan Pro which sometimes produces better output.

Theoretically you could use a calibration profile from someone else but that's output derived from THEIR scanner and would not correctly match yours. It might be close if the scanner is the same make and model but, otherwise, you'd have to fiddle with the results as well.

I did once try to use Vuescan to generate a profile and apply it in Silverfast but that did not work.

In lieu of calibration, you could take a stab at adjusting the input/output curves in Silverfast and saving that profile as a best guess that might be consistent from slide to slide but that does not guarantee it will work picture to picture much less roll to roll. It's better than no correction at all.

There are methods on line to create your own calibration profiles but I found them a bit too involved for my tastes. You could look for them.

Otherwise, the only way to work the issue is a lot of fiddling with settings for input and correcting the output as you go which will add considerably to the amount of time you'll spend. You could scan everything in pure RAW mode to capture just what the scanner sees and subsequently adjust levels in a batch mode later so you might be able to get the base scanning all done and worry about adjusting the results later.

No matter what, it's not easy!
Reply With Quote

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

All times are GMT -6. The time now is 06:35 PM.

Powered by vBulletin® Version 3.7.3
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.