CPL filters

[andrewtau]

i heard it reduces reflections glare etc etc.

what other things is it good for?

is it good to have one for scenary shoots? eg blue skies?

 

[EOS Revolution]

If i am not worng it will also deepen blue skies. for scenery and landscape, i usually use a GND though

 

[andrewtau]

oh i see. do u use it all the time, like keep it on the lens all the time or u change filters. ?

 

[yyD70S]

You do not keep the CP on at all times like you may do with a clear/UV filter; it cuts off 1-3 stops of light.

You can read all about them at "The Luminous Landscape".

oh i see. do u use it all the time, like keep it on the lens all the time or u change filters. ?

 

[HTCahHTC]

blue sky, yes. BUT only if the sky is really deep blue.
and also cuts off light entering the sensor.