In a recent thread, one of our members - @MossyRocks - educated me as to the use of certain UV filters with certain lenses to improve digital astro photography, and kindly provided a link to another thread by @Lew Dite; with off-site links discussing this application:
Deneb Region 100mm Astrotracer - Astrophotography - PentaxForums.com
Having read the linked content, it seemed to me that this use of UV filters mightn't just be limited to astro photography, but potentially all instances where "purple fringing" is present. So I did a little Googling and, sure enough, I found a few references to the use of UV filters to reduce fringing.
So, I wanted to ask, has anyone successfully used a UV filter to reduce purple fringing on an affected lens / camera combo in general use (rather than astro specific)? I can test this myself and fully intend to - possibly using the D FA 100mm f/2.8 Macro WR where purple fringing can be easily induced at maximum aperture. But I can only use those UV filters I own, which are mostly Hoya HMC UV(c) - and, as I understand it, the spectral filtering of UV filters varies considerably. Hence, my tests may not be conclusive.
I imagine some folks will say that any benefit can be duplicated using CA / fringe removal in post-processing, but of course this isn't the same, since it's basically desaturating specific colour ranges in the affected areas.
And, of course, I'm fully aware of the potentially detrimental effects of using UV filters. This thread is just addressing whether-or-not there is any benefit in purple fringing reduction
Any information and thoughts would be much appreciated
Last edited by BigMackCam; 11-07-2019 at 03:47 PM.