Circular Polarizers rock

[Heidfirst]

double post

 

[Heidfirst]

Originally posted by: AndrewR

Throckmorton: I don't know what's circular about a CPL, but I do know that a CPL is essential for a digital SLR. A regular polarizer, which is fine for film, will screw up the metering on a DSLR, at least I think that's the issue.

It's the AF that can be fooled by linear polarisers

Anubis, linear polarisers still rotate.


For the difference see http://www.camerapedia.org/wiki/Polarizer


I actually just ordered a Kenko (same as Hoya) 62mm Pro1d CPL this morning to go with my 77mm.

 

[AndrewR]

Originally posted by: Heidfirst

Originally posted by: AndrewR

Throckmorton: I don't know what's circular about a CPL, but I do know that a CPL is essential for a digital SLR. A regular polarizer, which is fine for film, will screw up the metering on a DSLR, at least I think that's the issue.

It's the AF that can be fooled by linear polarisers

Anubis, linear polarisers still rotate.


For the difference see http://www.camerapedia.org/wiki/Polarizer


I actually just ordered a Kenko (same as Hoya) 62mm Pro1d CPL this morning to go with my 77mm.

AF is confused by linear polarizers? Interesting -- thanks for the correction.

Where did you order the Kenko from? I need a better one already.

 

[Heidfirst]

an eBay seller in Hong Kong - don't know that the price differentiial from the US makes it worthwhile though as gear is cheaper in the US than UK.

 

[troytime]

tradingoo.com, as shady as it looks, has been awesome for me in the past

best prices (that i could find) and fast shipping
they ship from hong kong..but they still ship it right away (so it takes like 2 weeks)

 

[WalkingDead]

Kenko makes all the Hoya brand filters. All the Hoya filters on sale in the US have coatings and made in Japan glass. The more expensive models have multi-coat on both side. Outside of the US, there is a cheap Green Glass line of Hoya filters that are un-coated and use made in China glass. Guest what most of the cheap Hoya filters on eBay are?......that's right the Green Glass line.

 

[Heidfirst]

True if you don't know what you are looking for you can get caught out but mine is the Pro1D (top of the line) & it's still 1/2 the price of buying it in the UK.
I could have bought the Hoya Green version for 1/3 the price of the Pro1D.

 

[Throckmorton]

Originally posted by: Heidfirst

Originally posted by: AndrewR

Throckmorton: I don't know what's circular about a CPL, but I do know that a CPL is essential for a digital SLR. A regular polarizer, which is fine for film, will screw up the metering on a DSLR, at least I think that's the issue.

It's the AF that can be fooled by linear polarisers

Anubis, linear polarisers still rotate.


For the difference see http://www.camerapedia.org/wiki/Polarizer


I actually just ordered a Kenko (same as Hoya) 62mm Pro1d CPL this morning to go with my 77mm.

That's not much of an explanation. I want diagrams!!

 

[destrekor]

Originally posted by: Anubis

Originally posted by: Throckmorton
I don't understand what's circular about a circular polarizer. I have one for my camera and as far as I can tell it's just a regular polarizer

they rotate, non cicular polorizars do not,

CPL's are good for cameras with AF (modern cameras), because they don't really mess with the split-mirror system. the nice thing about polarizers in general, is you can rotate them, as they have a gradient of sorts, and you can change the portion of the image that is receiving the most polarization. So you can rotate it to match the horizon on a photo of a lake with sky (for example) but it has polarization in the entire scene, just part will receive more polarization.

+

 

[corkyg]

Here in Arizona, bright sun is the norm, and I figure if I need sunglasses, so does my camera. In simple terms, that is what a circular polarizer is - the camera's shades. The outer glass can be rotated to vary the effect, and the max effect is when the sun is at a 90 degree angle to you and your subject. You give up anywhere from 1 to 2 f stops in the process, but in bright sun, that is not really significant.

When you have a 77mm objective lens, then even Hoyas cost a few bucks.