C.S.I. Senior Member  506 posts Joined Oct 2004 Location: New York More info | Aug 17, 2008 01:53 | #1 Hey guys, Canon 40D | Canon 20D | Canon 300D | Canon 18-55 | Canon 50 1.8 | Sigma 10-20 | [FONT=Georgia]Sigma [FONT=Impact]105 | Sigma 70-200 2.8 | Sigma 120-300 2.8 | Tamron 28-75
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Anke "that rump shot is just adorable" UK SE Photographer of the Year 2009  30,454 posts Likes: 3 Joined Oct 2006 Location: Royal Tunbridge Wells, UK More info | Aug 17, 2008 01:58 | #2 C.S.I. wrote in post #6122529  Hey guys, Im going on a cruise in 4 weeks  and am bringing my brand spanking new 40D , and my Sigma 10-20/ Tamron 28-75.......my question is this.....I intend on using circular polarizers on both lens'. Does anyone also put UV or some kind of protection filter on in addition to the cir pol? Thanx! Nope, use a UV when you aren't using the polariser but don't shoot through both. Anke
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Jon Cream of the Crop  69,628 posts Likes: 227 Joined Jun 2004 Location: Bethesda, MD USA More info | Aug 17, 2008 09:42 | #3 Right. I see them as "either/or". Also take a look at the Protective Filter FAQ. Jon
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elysium "full of stupid banter"  11,619 posts Likes: 1 Joined Jul 2007 Location: Harrow/London/UK/GB/That Part Of The World/Next To France More info | Aug 17, 2008 09:55 | #4 Either/or. Can find issues of vigetting if using too many filters at once, especially on FF or UWA/WA lenses. Everyday, a programmer finds a way of creating an idiotproof program. Everyday, the universe spits out another idiot.....So far, the universe if winning
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SkipD Cream of the Crop  20,476 posts Likes: 165 Joined Dec 2002 Location: Southeastern WI, USA More info | Aug 17, 2008 10:10 | #5 Stacking filters when there's no good reason to do so (as in combining the creative effect of two filters) is just asking for reduced image quality due to flare, loss of contrast, etc. Skip Douglas
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