Polarizer [as in filter]

[joho]

views on a polariser filter, So what is the difference between the two ??? Linerer and the a circular.

To add to this post, to be more clear in the question. If some one has direct exprience as to any difference from a liniear type polarizer, and a circular type polarizer??

[xkaes]

The short answer is that both Linear and Circular Polarizers do the same thing. The actual polarization effects such as reducing reflections on glass surfaces, increasing color saturation in foliage, darkening a blue sky are the same with both Linear and Circular polarizers.

Circular Polarizers contains a Linear Polarizer component that does the main work of polarization, as well as a second layer inside the filter called a Quarter Wave Plate, which “spins” the light after it goes through the linear layer and before it enters the camera lens.

Linear polarizers can mess up newer cameras which have mirrors, etc. for metering, etc. , but they are not a problem with LF cameras -- which don't have mirrors. Plus circular polarizers are more expensive, since they are more complicated. Unless you have a camera that needs a circular PL, get a linear PL.

[joho]

xkaes,
Thank you for your input , having used for reproduction work polarized filters on lights with polarizer on lens - just never went deep -
agian thanks ....
joho

[Martin Aislabie]

You also need to decide if you need a front filter thread on your polarising filter.

Because polarising filters are thicker than standard filters, slim polarisers tend not to have a front thread.

The lack of a front thread is pain in the backside if you need to attach a Centre Filter to the front of your polarising filter.

On a practical note, I find the full effect of a polariser gives shots an artificial look - just something to think about when you are using one.

YMMV

Martin

[joho]

Rarely a polarizer is used for street work, never had a need.
Landscapes some times,
BUT! now in need, and looking for that hyper tones & color.

[Drew Wiley]

I never use a polarizing filter at all, except at the copy stand for cross-polarization purposes when shiny prints are involved. I like the shimmer and reflections in nature as they are. But as others have noted, if you do use them, it doesn't have to be at full strength, when tends to render a dull lifeless look.