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DPChallenge Forums >> Tips, Tricks, and Q&A >> why the blue edge?
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Showing posts 1 - 6 of 6, (reverse)
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05/15/2004 04:13:20 AM · #1
took this pic of a bee in the camelia mid afternoon today, there's a blue edge round the top right petal....why? resizing with PS made the blue edge even more noticeable. I used the flash as overcast day and was getting a lot of shadows w/out F5.6, ISO 100, 1/160
thanks - sue

05/15/2004 04:30:27 AM · #2
Purple fringe or Chromatic Aberrations the bane of digital photography. Seems to happen between transitions of dark and light.

Message edited by author 2004-05-15 04:34:14.
05/15/2004 04:32:58 AM · #3
That's a problem with several digital cameras (including my Canon G5). It's called purple fringing, and it seems to be mostly an optical problem. It happens at edges that have a high contrast, but does not always show. You can usually make it go away by stopping down. I guess in your case the outer part of the petal had a very bright lining which created the purple effect.
05/15/2004 04:55:39 AM · #4
thankyou....I cropped the purple fringe out and left the focus on the bee
05/15/2004 06:10:44 AM · #5
Quick fix. I went into Photoshop, selcted the area where the blue occured, just a square selection. Selcted Hue/Selection and desaturated the Blue. It worked.
05/15/2004 08:00:47 AM · #6
Oh thanks! I was going to ask the same question..junior prom:
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