rookie polarizing filter user, please help

I'm a satisfied G2 owner with a lensmate and UV filter. Now I've stepped up the collection and am experimenting with the circular-polarizing filter (Hoya). I like the new filter, but I need a little help learning how to use it properly. First of all, I don't totally understand how you really know the filter is engaged just by spinning the ring, is the only way to know by looking at the LCD? Or does the white tick-mark actually line up with something when the filter is fully engaged? I mean, I have taken practice shots and seen a definate effect once i view on a monitor... but what is the proper method to know when you are using the least possible or most possible filtration of the light?

Also, is it just me or does the G2 try to compensate for the effects of the filter? I seem to get different results by focusing with the filter engaged VS. focusing, then spinning the filter ring. Maybe I am just crazy. Thanks for the help!

-John

You need to look at the LCD - you need to see the changes you're actually making... a polarizer works best at a 90 degree angle to the sun, and you need to turn the ring till the polarizing affects the angles of the rays that you're trying to get rid of...

You'll find a clear explanation of the use of a polarizing filter with the G2 at the www.canong2.com web site - try the following address:

http://canong2.dynip.c​om:8080 …e-cirpol-02-21-2002.shtml

Cheers,
Stuart

Thanks for the help!

If you do a half shutter press before adjusting the filter angle, you would get a different light reading compared to metering after adjusting the filter. Not sure about focus though.