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DPChallenge Forums >> Tips, Tricks, and Q&A >> In need of photoshop help!
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Showing posts 1 - 9 of 9, (reverse)
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09/06/2004 09:11:16 PM · #1
I don't know why but my camera seems to create halo when shooting high contrasted scenes. I have a photo that I can't post for now being in a challenge that has been rejected at DPCPrints because of these halo ("You have fluorescent borders from over-sharpening"). The problems is that these borders where not from oversharpenning but where in the original shot and I would like to get rid of them but I don't know how. Here is an example of my problem.


Around the statue
Thanks!

Message edited by author 2004-09-06 21:12:33.
09/06/2004 09:14:51 PM · #2
I don't know anything about that camera, but if you can, you need a faster shutter speed, or a smaller aperature (or both). You're letting in far too much light from the sun, which is causing the haloing.. I believe.

09/06/2004 09:15:12 PM · #3
Quick questions: Did you use a filter and what were the settings? Any EV changes, +, -, or 0?
09/06/2004 09:15:13 PM · #4
The line around the edges are caused by sharpening, usually when you see them then you have oversharpened. To reduce/remove them try a different sharpening technique or dont sharpen as much.
09/06/2004 09:15:14 PM · #5
That's the problem you encounter with point and shoot digital. I have a Canon G2 and I have the halo problem when I shoot something that's backlit. I don;t know whether you can do anything about it except try to remove them in photoshop.
09/06/2004 09:18:39 PM · #6
Another thing you can try is to reduce the in-camera sharpening, which can be pretty agressive by default. Try setting it to the lowest value you can, if it is selectable. then sharpen in post-processing where you have control of the process.
09/06/2004 09:19:25 PM · #7
Originally posted by moodville:

The line around the edges are caused by sharpening, usually when you see them then you have oversharpened. To reduce/remove them try a different sharpening technique or dont sharpen as much.


The problem is that I get these halo before sharpenning.

Originally posted by doctornick:

That's the problem you encounter with point and shoot digital. I have a Canon G2 and I have the halo problem when I shoot something that's backlit. I don;t know whether you can do anything about it except try to remove them in photoshop.


That is what I want to do but I don't know how!!

09/06/2004 09:21:57 PM · #8
Originally posted by nicklevy:

Originally posted by moodville:

The line around the edges are caused by sharpening, usually when you see them then you have oversharpened. To reduce/remove them try a different sharpening technique or dont sharpen as much.


The problem is that I get these halo before sharpenning.


Does your camera sharpen in-camera? If you sharpen it yourself or on any other image with a dark edge you'll see the same thing. I'm sure there is some technical junk that explains it but that's the usual symptons for that type of problem.
09/06/2004 09:25:44 PM · #9
I would turn all the in-camera adjustments off (if you can) and do them all in PS. That way you know what has been done to the photo.
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