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standardized color test for lenses
#20
Quote:In general, I believe that the transmission spectrum has a significant effect on the image, which is not easy to correct in PS.  Would take a real colour profile to do so.
I'd go further and say it is impossible to do in PS. To correct a spectrum, you need to do so before the information gets destroyed. That is, before it gets turned into RGB. Also, I can't think of any easy way to correct for it either, short of creating a custom opposite response filter, which will also have the side effect of reducing overall transmission further.

 

For anyone outside of possibly some highly scientific imaging uses, this isn't worth it.
<a class="bbc_url" href="http://snowporing.deviantart.com/">dA</a> Canon 7D2, 7D, 5D2, 600D, 450D, 300D IR modified, 1D, EF-S 10-18, 15-85, EF 35/2, 85/1.8, 135/2, 70-300L, 100-400L, MP-E65, Zeiss 2/50, Sigma 150 macro, 120-300/2.8, Samyang 8mm fisheye, Olympus E-P1, Panasonic 20/1.7, Sony HX9V, Fuji X100.
  


Messages In This Thread
standardized color test for lenses - by toni-a - 08-27-2016, 03:49 PM
standardized color test for lenses - by wim - 08-27-2016, 08:26 PM
standardized color test for lenses - by Klaus - 08-27-2016, 10:23 PM
standardized color test for lenses - by wim - 08-28-2016, 12:12 AM
standardized color test for lenses - by Klaus - 08-28-2016, 07:12 AM
standardized color test for lenses - by popo - 08-28-2016, 07:39 AM
standardized color test for lenses - by Klaus - 08-28-2016, 08:16 AM
standardized color test for lenses - by Ayoh - 08-29-2016, 04:19 AM
standardized color test for lenses - by JJ_SO - 08-29-2016, 07:08 AM
standardized color test for lenses - by davidmanze - 08-29-2016, 07:48 AM
standardized color test for lenses - by JJ_SO - 08-29-2016, 08:48 AM
standardized color test for lenses - by Guest - 08-29-2016, 12:27 PM
standardized color test for lenses - by Klaus - 08-29-2016, 01:27 PM
standardized color test for lenses - by JJ_SO - 08-29-2016, 02:23 PM
standardized color test for lenses - by Klaus - 08-29-2016, 03:15 PM
standardized color test for lenses - by JJ_SO - 08-29-2016, 03:33 PM
standardized color test for lenses - by joachim - 08-30-2016, 09:36 AM
standardized color test for lenses - by popo - 08-30-2016, 04:54 PM

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