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View Full Version : Skylight vs UV - less light?


paulhillion
17th of April 2005 (Sun), 04:55
Quick question - does a skylight filter let in any less light than a UV filter? I only ask as I always have filters on my lenses as a matter of protection, I usually have skylight on multi purpose lenses such as the 24-70L and UV's on lenses used primarily for landscapes and wildlife. I've just got the 400 5.6L prime and all I have is a super hmc Skylight filter to put on it, any disadvantages on using this over a UV?

Thanks.

J Rabin
17th of April 2005 (Sun), 15:32
Well. I'll stand corrected if mistaken, but the UV 010 filters are fairly clear and exposure is not affected. Skylights have about a 0.1 exposure difference from from the UV filters, which for all intents and purposes equals zero, since to TTL meter takes care of tiny difference. The real issue with skylights is the subtle pinkish warming cast. It never bothered me in film. I liked to counter to cool blue of slide film. On digital, when I put the B&W KR 1.5 Skylight on any of my Canon L lenses (17-40, 24-70, 70-200) and then bring the images into PhotoShop, I can really SEE the difference, especially when fine tuning white balance with gray eyedropper. I have stopped using skylights entirely because digital is so... resolving. You want to buy my excellent B&W 77mm?
Hope that helps. Jack

robertwgross
18th of April 2005 (Mon), 00:18
I can see the color difference of a Skylight, as compared to a straight UV, but I can't measure any difference exposure-wise.

---Bob Gross---

KevC
29th of April 2005 (Fri), 23:21
Hm. So UV's better, eh? Unless you can use custom colour white balance with a grey card with the skylight and be ok?