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05-15-2014, 06:39 PM   #1
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DA*10-17mm fish eye flare problems

Hello fisheye users!
I use that lens mostly for 360 panoramas and I have had a few bad experiences with flare - or whatever it is - when shooting facing lights. Its always that coloured flare which I get rid of by using the paint brush in PS in color mode and sampling on a correct color, then burning over as required to render a close enough result.
Any other experiences like that and is it just with that lens? I see that this is a common problem with that lens as seen elsewhere in the forum.
Is there an other(s) fisheyes that are more tolerant suitable for a K5 type?Name:  Novo_140221_081_2_3_4_5.jpg
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05-15-2014, 06:51 PM   #2
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You can see what others are using here:

https://www.pentaxforums.com/forums/122-lens-clubs/33549-fisheye-fever-club-f...ye-photos.html

I don't shoot into lights much but I don't recall having that issue.
05-15-2014, 07:04 PM   #3
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I only use mine outdoors in daylight, so I don't know. I suppose I don't shoot into the Sun much either.

But only Pentax(/Tokina) and Canon make Fisheye zooms, AFAIK, so if you switch you'll lose the benefit of being able to control the amount of distortion.
05-15-2014, 07:57 PM   #4
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QuoteOriginally posted by Rnovo Quote
Any other experiences like that and is it just with that lens? I see that this is a common problem with that lens as seen elsewhere in the forum.
I guess that probably answers the question in regards to the DA 10-17. I shoot with both the KMZ MC Zenitar 16/2.8 fisheye and the Rokinon 8/3.5 fisheye and can't say that either lens is prone to the kind of aberration shown in your example.


Steve

05-15-2014, 08:28 PM   #5
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I was going to say this looks like the sort of flare being shown by the Sony A7, https://www.pentaxforums.com/forums/76-non-pentax-cameras-canon-nikon-etc/241...ml#post2806958 with ultra wide angle lenses.

But those shots show a sort of chatter from several reflections, while the fisheye shot of yours has no continued reflections like the Sony camera. I'm guessing that flare occurs at the wide end of the fisheye,

Even my favorite DA50-135 has some flare at some angles with a bright source. Don't think there is much that can be done about it.
05-15-2014, 10:53 PM   #6
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You are using aperture setting hire than f5,6, so flare is more visible. You are shooting in portrait position flare is more visible because of that too.
05-16-2014, 03:39 AM   #7
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QuoteOriginally posted by i83N Quote
You are using aperture setting hire than f5,6, so flare is more visible. You are shooting in portrait position flare is more visible because of that too.
Yes, that occurred to me - all my panos are done at f8.0. Given the other answers I'll have to test the lens at other apertures.
05-16-2014, 08:18 AM   #8
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I think the problem has to do with where in the frame the lights are. The DA 10-17 has superb flare control toward the center of the frame. Toward the edge of the frame is where you might have issues. Regardless, the DA 10-17 is the most flare resistant lens I own (and I have a DA 15). I doubt you'll find a k-mount fisheye that does better.

05-16-2014, 11:35 AM   #9
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QuoteOriginally posted by northcoastgreg Quote
I think the problem has to do with where in the frame the lights are. The DA 10-17 has superb flare control toward the center of the frame. Toward the edge of the frame is where you might have issues. Regardless, the DA 10-17 is the most flare resistant lens I own (and I have a DA 15). I doubt you'll find a k-mount fisheye that does better.
Since you mention it its true that all flares are at the edges. I did a little search and I might just stick with that lens because I rely a lot on exif information for all pano stuff and I might solve one to fall into another problem...?
That Pentax photo gallery is quite good - didn't know about it and, well done with you own work!
Thanks to all for the answers.
05-27-2014, 01:09 PM   #10
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Just to add to the previous poster, your result is similar that mine when I had the lens. The flare resistance od DA10-17 is good, much better than my tokina 11-16 in nikon, and slightly better than the sigma 10-20 when I had it.

Not sure how much you have to spend to get wide angle with flare immunity. Even $$$ Canonikon wides / fisheyes are not immune unless designed to be so like the AFS 17-35mm
Canon EF 8-15mm f/4 L USM Fisheye Lens Review

Last edited by Andi Lo; 05-27-2014 at 01:14 PM.
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