White Balance and Circular Polarizers

[dpanicc1]

Just looking for people's thoughts when using said filter. I set my 10D to either custom or fixed (depending on the conditions). Not sure it's wise to use Auto. How do you use WB with circular polarizers?

Thsnks,
Dan

[chris.bailey]

I have had some strange results when using Auto and on the basis I only tend to use them for increasing sky colour saturation I use the daylight setting.

[Avarond]

While we are on the topic of Polarizers, could someone explain the proper use of them. I know what they are for but not exactly how they work. Anyone care to give a brief lesson?

[CyberDyneSystems]

Avarond,. somewhere in the "All the best links" sticky post there is a link that will bring you to a tutorial on exactly that subject..

I am going to let you look for the link,. (?can't remebr where it is myself) because I bet while you search for it you will find a host of other fantastic info in that thread! :)

[Avarond]

Sounds good

[dpanicc1]

I like the effect on the sky on a clear day--nice blue. Glare is minimized when taking pictures at a 90 degree angle to the sun and helps at other angles too. But I like using it best on overcast days because it really brings the colors out. I think the best useage is with a fixed WB otherwise, if in auto mode, the camera tries to compensate for the polarizer's color. Anyone want to elaborate on how they use WB with CPs?

[PaulB]

I was always taught that a polarizer is neutral in colour - like a ND filter.
I which case it should not make any difference as it only increases colour saturation

[Whaler]

Avarond,

Found it. . . I was curious too.

http://www.cliffshade.com/dpfwiw/polarizer.htm#post

[Avarond]

Hmm I had found one too and some others on ND filters but that one is different. I'll have to give it a read through.

Thanks for the info.

By the way the Singh Ray website has some good information and example pics on the different types of filters. www.singh-ray.com