Polarizer filters

[snapshotmd]

Hi everyone!

I'm considering getting a polarizer for my handycam and thinking about getting the linear type so that I could adjust the effect. I know that circular polarizers are widely used for video applications.

Can I use a linear polarizer? What are the limitations?

Ken

[tito13kfm]

linear polarizers will usually screw with the auto-focus ability of your camera. At least that's what it does with SLR style still cameras, not 100% sure on video cameras though, also screws with the light metering if it is happening TTL.

[snapshotmd]

tito,
Thanks for your reply, however, I don't think that's entirely true. A lot of still camera AF lenses sport a rotating front element when it focuses, so a CP must be used. If the lens front is static while focusing then a LP can be used.

I'm just wondering, since most camcorder lens fronts are static, why is it that the CP is used most often and not a LP.

Ken

[tito13kfm]

shows that i'm still stuck in SLR mode from my previous job.

Actually the more correct reasoning behind using a circular as apposed to a linear polarizer is that the automatic metering system of your camcorder uses a polarizing beam splitter to judge the amount of light in a given scene, if you were to use a linear polarizer with this it would run the potential of causing a "blackout" where the light entering the camera and the beam splitter don't sync up.

Basically, give the linear a shot.. if it doesn't work then take it back and say u got the wrong one.. nobody should give you crap for exchanging for a more expensive filter.