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Old Jul 9, 2008, 7:24 PM   #1
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hi

I see filters (UV polarizing etc) on ebay for about £5 or 10$ are these ok? or junk?

like this...
http://cgi.ebay.co.uk/58mm-UV-Filter...3286.m14.l1318

and
http://cgi.ebay.co.uk/CPL-Circular-P...3286.m14.l1318

thanks
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Old Jul 9, 2008, 8:26 PM   #2
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Buy once and buy right. There are very big differences, a good polarizing filter can easily run >$70. You don't buy nice glass for your DSLR just to put some cheap glass on top of it and degrade the image quality. Pretty much any other filter can be done in photoshop, unless you need to use an ND grad filter to slow down the shutter speed to shoot a waterfall when the environment is bright.
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Old Jul 10, 2008, 4:50 AM   #3
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ok so they probably are junk.

as they all look the same to me, how much should they cost, or can you recommend a good one for a reasonable price.
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Old Jul 10, 2008, 8:17 AM   #4
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You don't say why you want one.
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Old Jul 10, 2008, 11:50 AM   #5
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ive seen in magazines the polorising filter the UV and the ND and would like to try them out
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Old Jul 10, 2008, 5:09 PM   #6
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I keep a UV haze filter on my lenses for protection but I do remove them when doing tripod shots or night shots. A Polarizing filter is always in my kit as it comes in handy to darken pale skys and removes reflected light off of glass and water.
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Old Jul 11, 2008, 4:56 AM   #7
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I always have a Polariser with me whatever camera, as I like taking weather pictures and a polariser is a must. I purchased a good Hoya one online for around £30. I also use to have a UV filter on my lenses just for protection and never took them off, but currently have a couple without protection, so should buy some more. Although you can just buy clear glass lens protectors without UV.

I also use the Cokin system for shots that need a ND grad, landscape types etc, although with the rotation of the lens on the 450D, this can make things more fiddly.Given that the ND Grad lens that I use is almost always for landscapes, at least the subject matter isnt going to run away!
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Old Jul 11, 2008, 10:47 AM   #8
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i see some say circular and some linear polarizers, whats the difference and would one be better than the other for a 450d (ie rotating barrel)

update:
Just incase anyone else is listening, i found answer here
http://www.photofilter.com/cir_lin.html


and bought this one
http://www.warehouseexpress.com/prod...aspx?sku=11801

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Old Jul 11, 2008, 2:32 PM   #9
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looks like a good one, that would be my choice. which reminds me i need to get one before vacation for my 17-85 lens.
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Old Jul 18, 2008, 9:37 AM   #10
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Heve you tried already the PL with your 450D i think it will not be very usefull as the ring rotates when focous. let m now when you test it
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