Skip to the end of navigation

Welcome to the Community!

F5 & F55

Showing results for 
Search instead for 
Do you mean 
Posts: 182
Registered: ‎02-13-2013
Message 1 of 6 (2,446 Views)

Linear vs. circular pola?

I've been using a Schneider circular pola on my F5 since I received the camera and have never really thought about it, but the filter broke on my last shoot so now I am in the market for a new pola.  Now that I am looking at filters I find myself questioning whether or not I need a circular pola.  Is there any reason to think that a linear would negatively effect exposure tools (as they become available) on the F5 or the waveform on my external monitor?


Please excuse my ingnorance on this subject.




Posts: 67
Registered: ‎11-21-2012
Message 2 of 6 (2,415 Views)

Re: Linear vs. circular pola?

The F55 like any video camera does not use a beam-splitter for monitoring; so I don't think a circular pola is necessary. This discussion seems to cover it:




Posts: 1,532
Registered: ‎11-20-2012
Message 3 of 6 (2,373 Views)

Re: Linear vs. circular pola?

[ Edited ]

I wouldn't be so quick to discount the need for a circular polarizer.  Previous Sony cameras, such as the EX1 and EX3, had serious color shifts when linear polarizers were used.  I don't own any linear filters now so I can't do any testing for you with my F55.

Posts: 280
Registered: ‎04-07-2013
Message 4 of 6 (1,278 Views)

Re: Linear vs. circular pola?

good to know thanks! I have not noticed any problems either but the statement sure makes me wonder if there is a possibility of issues under certain conditions

Douglas Munro CSC
Posts: 401
Registered: ‎11-20-2012
Message 5 of 6 (1,134 Views)

Re: Linear vs. circular pola?

I've used only linear polas
Reuben Steinberg
Posts: 416
Registered: ‎04-03-2013
Message 6 of 6 (983 Views)

Re: Linear vs. circular pola?

[ Edited ]

Hi, Nick,

Reuben is correct, linear polarizers are all you need for an F5 or F55, since they have a single image sensor design.

Other video cameras which have three image sensors, like the EX1 and EX3 mentioned above, require circular polarizer due to the use of a prismatic colour beam-splitter in their sensor block.  The beam-splitter, by its nature, causes a polarizing effect for the respective colour it passes.  A linear polarizer and the prism compound each other to almost completely block any particular colour as the polarizer is rotated.

A circular polarizer is actually two filters. The front filter, toward the incoming light polarizes the light in the same way as a linear polarizer, because that is what it is. The back filter, toward the sensor block, "spins" the polarized light so that it isn't polarized any more and does not compound the polarizing effects of the beam-splitter.

You may have noticed if you have ever used two polarizers together that you get a variable ND filter.

Isn't it wonderful how light and glass interact?

Best regards,

Get Social

Share your ideas Watch YouTube Support Videos follow us on Twitter Visit us on Facebook