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 Senior Member
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Join Date: Aug 2008
Location: Portsmouth, Hants, England
Posts: 622
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Quote:
Originally Posted by Dejavu
I keep a Hoya HMC 77mm skylight (Ib) on my Canon 400mm f5.6 L. I have shot test images with and without filter and have not noticed any differance in IQ or focusing.[/i]
Having said that, if you put the hood on most of my lenses, you would be hard pressed to knock them anyway
I am happy in the knowledge that the end of my lenses are in the same mint condition now as when I took them out of the box.
Alan.
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Kit 1 Canon 5D Mk11 EF 85mm F1.2 L EF 17-40 F4 L EF 100-400 F4.5-F5.6 L EF 50mm F1.8 Sigma F2.8 28-70mm |
Kit 2 Canon EOS 30D EF-S 18-55mm EF 35-105mm EF 70-300 |
Other Kit View my profile to see my other kit! |
 Junior Member
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Join Date: Jun 2010
Location: Kent, England
Posts: 11
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I always keep a filter on my lens, but in my case it's a circular polariser. But whatever the filter, it does help protect the lens.
 Senior Member
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Join Date: Aug 2008
Location: Leicestershire, UK
Posts: 2,133
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Interesting Kenty, presumably you wouldn't always keep a polariser in place for everything?
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Junior Member
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Join Date: Jun 2010
Location: Kent, England
Posts: 11
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I do actually, did it first of all to see what difference it made and most of the time it's little more than like having a skylight filter on the front, apart from the fact it's dark!
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Senior Member
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Join Date: Aug 2008
Location: Leicestershire, UK
Posts: 2,133
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Your choice of course.
if you don't mind for the benefit of anyone who wasn't sure why I mentioned it as there are a few learners in the forum. Typically a polariser will cause a very small degradation in image quality, possibly undetectable, but more importantly you will lose at least a stop of light (advantageous in some situations) and only in certain situations will the polariser actually have the effect it is designed for. A polariser is used at an angle to the sun, and you rotate the glass to reduce reflections on non-metallic surfaces, water, windows etc. and deepen the blue of skies (see any travel brochure). Most people fit them when they are to be used rather than keeping them on permanantly which was why I asked Kenty. How we choose to do our photography is of course our own choice.
if you don't mind for the benefit of anyone who wasn't sure why I mentioned it as there are a few learners in the forum. Typically a polariser will cause a very small degradation in image quality, possibly undetectable, but more importantly you will lose at least a stop of light (advantageous in some situations) and only in certain situations will the polariser actually have the effect it is designed for. A polariser is used at an angle to the sun, and you rotate the glass to reduce reflections on non-metallic surfaces, water, windows etc. and deepen the blue of skies (see any travel brochure). Most people fit them when they are to be used rather than keeping them on permanantly which was why I asked Kenty. How we choose to do our photography is of course our own choice.
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Junior Member
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Join Date: Jun 2010
Location: Kent, England
Posts: 11
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No problems. Most of my photography is outdoor and I tend not to carry a camera bag with me so I just leave filter in place for the occasions when I need it. I feel it's drawbacks are outweighed by leaving it in place
Here's a slightly modified shot I took with it in place:
Here's a slightly modified shot I took with it in place:
 Admin Team
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Join Date: Sep 2007
Location: South Wales, UK
Posts: 15,385
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Have you tried or thought about getting a UV filter Kenty? That way you get the protection but without no real change to the photos
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Kit 1 Nikon D300 Nikon 55-200mm VR |
Kit 2 Nikon D40 Nikon 18-55mm |
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My Compact/P&S: Panasonic Lumix TZ7 |
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Junior Member
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Join Date: Jun 2010
Location: Kent, England
Posts: 11
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I'm qute happy with just leaving the polariser on - it hasn't caused me any difficulties to date.