Polarisation Lense

[ekardo]

may I know if I am right about this..

a polarisation lense helps to
1) reduce the reflection off non metallic material...
2) create the effect of uniform blue color of the sky ???

and what other function ?
went to AP and ask for the price..

HOYA at $35..no brand at $20...
expensive hor ?

[Adam Goi]

Quote: Originally posted by ekardo may I know if I am right about this.. a polarisation lense helps to 1) reduce the reflection off non metallic material... 2) create the effect of uniform blue color of the sky ??? and what other function ? went to AP and ask for the price.. HOYA at $35..no brand at $20... expensive hor ?

I just to point out that it is filter, not a lens.

Polarisers tend to be more expensive with bigger thread sizes. Even for Hoya polarisers, do note that they come in various grades, i.e. Std, Ultra, HMC and S-HMC.

[Belle&Sebastain]

just gotten a HOYA 52mm cir-polariser at John 3:16 for $34, just for price comparing.

[ekardo]

oh..ya...should be filter...sorry about that mistake..

so which grade is the best?

and is the function I listed correct?

[ekardo]

Quote: Originally posted by Belle&Sebastain just gotten a HOYA 52mm cir-polariser at John 3:16 for $34, just for price comparing.

did you bargain ? anyway, I think I rather fed up with the attitude from AP...esp that tao face shortie...

think I will go CP tomorrow to ask..

[Belle&Sebastain]

Well he did say $36 at first,well their prices are rather the same from sales person to another.

[ekardo]

Quote: Originally posted by Belle&Sebastain Well he did say $36 at first,well their prices are rather the same from sales person to another.

still no one answer if I am right or wrong..

[Belle&Sebastain]

well, i 'll only use it next week, test and will let you know

[Kit]

You're right about cutting down reflection on non-metallic surfaces.

As for the sky, it depends. The filter does not necessary gives you uniform blue sky all the time. Depending on the direction of your subjects. Using a polariser with wide angle lenses will cause uneven polarisation at times too.

I think Hoya filters are considered reasonably priced. If you think they're expensive, ask about how much a Nikon or Singh-Ray polariser cost

This digital photography site has an excellent primer on the use of polarising filters, with probably more details than most of us would care to know.

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

[ekardo]

Quote: Originally posted by Midnight This digital photography site has an excellent primer on the use of polarising filters, with probably more details than most of us would care to know. http://www.cliffshade.com/dpfwiw/polarizer.htm

thanks everyone for the tips..

and thanks for the url..will read up later..