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Old 05-13-2010, 11:04 PM
freechechnya1's Avatar
freechechnya1 freechechnya1 is offline
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Default quality control.

Starting to use more and more filters im realising that quality somtimes takes a hit. Does money always = quality? especially when it comes to circular polarizers? and does more filters = lower quality? If there is already a thread on this subject please direct me.
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Old 05-20-2010, 06:20 PM
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ryo ryo is offline
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Basically, yes and yes to both your questions: usually, the more a filter is expensive, the better it is, and the more filters you stack in front of a lens, the more degradation of sharpness you get. This is simply because a filter is adding two air/glass surfaces to your lens, and they are the critical places for image quality.

And stacking can mean also corner blackening, meaning you have to "zoom" into an image to get rid of the dark corner, loosing the extreme wide position of a zoom or the advantages of a wide prime.

So refrain from stacking... and buy expensive filters!

And the worst part is that I am serious here

Olivier
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