HC1 color fringing
I was wondering if color fringing was normal for this (or any cam) when using zoom. I noticed that when I am at full zoom, the image there is a distinct green tint on one side of objects and a magenta tint on the other. This is most apparent when I'm trying to fake a DoF shot and have a foreground object in focus and the background blurred - you see the effect most in the blurred area, but the foreground object also doesn't look quite as sharp as it should.
I had thought this was because of a cheap ND filter or CP I was using in the past, but with this particular project I am working on, neither was being used. Is this just "normal" for this level of camera? |
Strong backlights? I've noticed this "effect" when shooting indoors wiith bright windows - the bright areas seem to have a bit of fringing/CA on the bright dark transition. Haven't noticed it under other conditions though.
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Take a look: http://i120.photobucket.com/albums/o...orfringing.jpg |
white wall = "bright", and it's noticeable on that transition to the dark area. Not sure the cause, but seen it a few times. FX7 does it, so it's not necessarily a function of price...
Two possibilities, one being just the inherent challenge of CA (chromatic aberration), the other is that "sharp" transitions in brightness cause a problem for the HDV compression... I've learned to ignore it when it pops up, although I've seen it quite severe with strong backlighting. Most people will never notice it... |
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Thanks! |
Hi,
I would consider this color fringing as "normal". This phenomenon is caused because less than perfect lenses, that are "streched" at high zooms. I have noticed the same behavior with my HC-1 already from day one. These lens color aberrations are especially visible with high contrast objects, just as you mention, with backlight objects and high zoom. You have to spend a lot more for the optics that would not show this behavior. That would not have left anything left for the electronics in HC1-1. You just have to live with this. Not a very serious "problem" for a cam in this price category, but would be a serious flaw in a professional cam. Now you understand also why the optics is interchangeable in pro cams.. Christian |
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I'm in the process of building a 35mm adapter so that should solve some issues, assuming a) I get it finished and b) it works as I hope. ;-) Anyway, thanks for the reply. |
Hi Paul,
Good luck with your adapter, would be nice to see and hear how it turned out. Well, imaging how the image would look WITHOUT the Carl Zeiss optics ;) Best regards, Christian |
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