How do you use CPL?

[sunnycal]

I mean the concept is simple but does it make big difference in right circumstances? Also what do you do to orient CPL to proper angle to get the most benefit.

I personally have used it to get rid of atmospheric haze with varying degree of success. I have never been able to noticeably reduce reflection when trying to eliminate reflection from water surface.

As for the orientation, I rotate and eyeball for the best effect. However I run into issue with long lens and with moving subjects, where eyeball adjustments are more difficult. Is there a way to figure out the best orientation and adjust beforehand without having to look through viewfinder?

 

[tclune]

As for the orientation, I rotate and eyeball for the best effect. However I run into issue with long lens and with moving subjects, where eyeball adjustments are more difficult. Is there a way to figure out the best orientation and adjust beforehand without having to look through viewfinder?

This depends on the CPL. Many have a triangle on the rim of the CPL. Rotate the CPL so the triangle points at the sun and you should be at the maximum effect for the polarizer. If there is no mark on the rim, I don't know of any way to decide other than through the viewfinder. FWIW

 

[Krusty79]

I use one mainly to reduce glare in water scenes. Of course, you see the most difference if you have it cranked up all the way and you're at a 90 degree angle to the sun. I try not to overdo the effect.

I haven't used one on a telephoto.

 

[gordonpritchard]

With your hand like this:



Point your thumb at the sun and your finger will point to where the filter will have its maximum effect.

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