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Post by Renoir Abrea on Jan 12, 2010 3:17:22 GMT
hi' do i have to place filter to protect the Sigma 150-500mm lens? if so what will you recommend.
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Post by mantarey on Jan 12, 2010 3:43:49 GMT
Hi Renoir, filters on long lenses for bird photography is not advisable actually, it degrades the IQ of your captures.  |
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Post by Romy Ocon on Jan 12, 2010 3:59:07 GMT
I second what Rey said. UV or "protection" filters will just degrade the IQ and often the AF performance of the lens. Just keep the hood on always, that's enough protection. The only filters I recommend using are CPL and graduated ND filters, but those are for landscapes mostly. If you have to shoot in dangerous situations, like motocross with flying mud and gravel, or when you shoot in a sandstorm, then a UV or clear filter might be useful.
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Post by Renoir Abrea on Jan 12, 2010 4:01:40 GMT
many thanks
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Post by Romy Ocon on Jan 12, 2010 4:21:18 GMT
Speaking of lens hoods, here's a couple more tips.
1. The hood of long zooms like the 150-500 OS are designed to work without light fall off at the wide end (150 mm), even when using a full frame body. As such, the hood's design is a compromise and it doesn't perform optimally at the 500 mm end. You can easily make a DIY lens hood extender from black cartolina, cardboard or flexible plastic sheet. You can slide this over the original hood by force fitting, rubber bands, velcro or any convenient means. If you shoot mostly 300 mm or longer anyway, you can easily double the length of your existing hood and improve contrast and saturation when in side lit situations. You have to remove the hood extender of course when shooting wide.
2. I use a disposable shower cap (the ones given free by hotels) to cover the front of my hood on long hikes, or in dusty conditions between shoots.
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Post by Edu Lorenzo Jr on Jan 12, 2010 4:57:22 GMT
disposable shower cap.. ingenious!
and speaking of DIY lens hoods.. I think Sir Rey will be able to help you there.
Renoir, stay away from UV filters, they block out UV rays that kills fungus.
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Post by ppaaoolloo on Jan 12, 2010 4:58:30 GMT
Filters (even UV) filters out light. Loss of light makes photography even harder to expose properly.
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Post by Ding Carpio on Jan 13, 2010 10:03:34 GMT
2. I use a disposable shower cap (the ones given free by hotels) to cover the front of my hood on long hikes, or in dusty conditions between shoots. He-he. I do that, too. In a pocket of my shooting vest, I have a disposable shower cap and a trash bag, just in case it rains. Kids saw the disposable shower cap once and thought I'm prepared for an uncontrollable urge to take a bath. |
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