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04-08-2021, 09:10 AM   #1
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reducing purple fringing in HDR with 10-17?!

Been playing with HDR and 10-17 fisheye zoom, its fun but quality is not great - purple fringing especially

I shoot RAW, 3 shots (+2 / 0/ -2) and process with Affinity. In high contrast corners purple fringing is so bad Affiinity cant remove it

For HDR stacking would a tripod make much difference to things as currently I hand hold?


Last edited by LittleSkink; 04-08-2021 at 10:03 AM.
04-08-2021, 10:27 AM   #2
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Sadly, PF is a known trait of the DA 10-17 Fisheye, something that is frequently noted on the Fisheye Fever thread (LINK). In regards to PF and HDR, I recommend removing after merge, being aware that PF tends to be worse with overexposure (smaller bracket increments might be in order). I also strongly recommend tripod use for HDR and any other situation where merging frames is done.

I am an Affinity Photo user, but not for that purpose and can't help there.


Steve
04-08-2021, 10:54 AM   #3
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I agree, avoid blown out highlight is probably best way avoiding severe PF.
You can try dialing in some negative exposure compensation, maybe one or two stops.
So the HDR in effect becomes +1/-1/-3 or 0/-2/-4 instead, and then bring up the shadows in post.

Or shot 5 images instead and not use the 1-2 highest exposed shots for the HDR, if they show too much PF.

Last edited by Fogel70; 04-08-2021 at 11:15 AM.
04-08-2021, 11:09 AM   #4
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QuoteOriginally posted by Fogel70 Quote
Or shot 5 images instead and not use the 1-2 highest exposed shots for the HDR, if they show too much PF.
Thanks for this suggestion. I was going to add something similar, but am glad I didn't because you did a much better job of saying how to do it.


Steve

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