dandantheadminman
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polariser questionI'll be buying a polariser with a D50 next weekend and was wondering if I should leave it on for shooitng mtb stuff? or will it make shooitng mtb worse somehow? p.s. it'll be a screw on one.
thnx
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Hamish
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It will help some things and make others worse. I wouldn't just leave it on all the time
Polarisers can be useful to increase the saturation in skies and/or cut out reflected glare from wet rock/foliage. The downside is that it adds 1-2stops onto the exposure, depending on the strength of the polariser (you'll see the subtle effect through the viewfinder when you turn the filter). If you're struggling to get the aperture, shutter speed and ISO you want then you'd be better off without it. If there's plenty of light and you want to cut out reflections or make the sky more blue then go for it.
Also the position of the sun will affect the effect of the filter. You'll find it's strongest when the sun's raya are at 90 degrees.
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dandantheadminman
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will something like skylight filter be better then? because ideally i want to leave a filter screw on to try and stop my lens getting mud, water or sctratches on.
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Hamish
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The best thing is a lens hood.
I don't use filters for protection. I don't see the point. The lenses are multicoated and can handle a bit of water or mud, so long as you learn to clean them properly. Some people suggest a UV or skylight filter to 'protect' the lens. If you break the filter, however, the glass will scratch the lens and it's screwed anyway. The lens hood will offer plenty of protection from foreign objects.
Also, you don't need a UV filter on a DSLR as it doesn't affect things, other than increasing chances of flare. I'd say just save your money and don't be clumsy. Only use filters for the filter effect.
My $0.02
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dandantheadminman
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ooo, kk,
yeh i think ill get a poalrisier, but take it off for mtb stuff then. thnx for the advice
p.s. can you still stick a lens hood on with a screwon filter?
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Hamish
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Yes you can. You'll need to take it off when adjusting a polariser (you'll understand when you start using it) but you can leave it on for anything else. Also, the Nikon ones are really quite good and you can reverse them so that the petals point towards the camera, when you've got them in your bag.
I forgot to mention re: stuff on the lens - Don't obsess about cleaning them. They can handle a bit of dust without affecting your photos. They don't need to appear pristine all the time. Greasy fingerprints are a different story and should be cleaned promptly but can be avoided if you're not clumsy.
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dandantheadminman
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oo thnx again, I should have it all on wed:D
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