Polarizing Filters at DVinfo.net

Curtis Barnard Jr. · July 16th, 2004, 01:01 AM

What are some good polarizers for a VX-2100? Is it possible to mount one under another lens (ex. Tele or wide)? It seems like alot of people talk about tiffens on here, should i go with them?

Thanks-Curtis

Tom Hardwick · July 16th, 2004, 10:08 AM

Yes, you can polarise the light at any point on its travels through all those lens elements. Go with any name you've heard of and remember - you don't need a circular polarisor - a linear one is just as good and a lot cheaper.

tom.

Mike Rehmus · July 16th, 2004, 10:57 AM

I don't think it is a good idea to introduce another lens element between an auxiliary and the prime lens. The auxiliary lens was not designed for that situation and the effects may be a poorer image. Furthermore, the rotating joint of the filter may not be up to the task of holding the weight of the auxiliary lens and may be damaged or completely fail, possibly damaging the auxiliary lens and certainly the filter.

This issue has been discussed to death on this and other forums. Please do a search to read everything that can be said about the subject.

Jeff Donald · July 16th, 2004, 10:59 AM

Mounting polarizers between wide angle lenses can cause the lens to vignette. Mounting it between a telephoto lens will change the focal length slightly and may slightly lower the image quality.

Michael Bendixen · July 16th, 2004, 06:36 PM

I tried mounting a tiffen round polarizer on my pd-170 prime but I couldn't fit on the sunshade as well. Does anyone have any tricks. I really want that sunshade.

Nick Reed · July 16th, 2004, 10:58 PM

I agree with Mike & Jeff. Use the polarizer on the front, not between lens elements.

My understanding is that you need to use a circular polarizer if you want the auto focus to work dependably.

I would choose a Hoya filter over a Tiffen when at all possible. All Tiffens are made from green glass, Hoya's are made from clear glass.

July 16th, 2004, 01:01 AM	#1
Curtis Barnard Jr. New Boot Join Date: Jul 2004 Location: Portland, Oregon Posts: 9	Polarizing Filters What are some good polarizers for a VX-2100? Is it possible to mount one under another lens (ex. Tele or wide)? It seems like alot of people talk about tiffens on here, should i go with them? Thanks-Curtis

July 16th, 2004, 10:57 AM	#3
Mike Rehmus Wrangler Join Date: May 2002 Location: Vallejo, California Posts: 4,049	I don't think it is a good idea to introduce another lens element between an auxiliary and the prime lens. The auxiliary lens was not designed for that situation and the effects may be a poorer image. Furthermore, the rotating joint of the filter may not be up to the task of holding the weight of the auxiliary lens and may be damaged or completely fail, possibly damaging the auxiliary lens and certainly the filter. This issue has been discussed to death on this and other forums. Please do a search to read everything that can be said about the subject. __________________ Mike Rehmus Hey, I can see the carrot at the end of the tunnel!

July 16th, 2004, 10:59 AM	#4
Jeff Donald Warden Join Date: Mar 2002 Location: Clearwater, FL Posts: 8,287	Mounting polarizers between wide angle lenses can cause the lens to vignette. Mounting it between a telephoto lens will change the focal length slightly and may slightly lower the image quality. __________________ Jeff Donald Carpe Diem Search DVinfo.net for quick answers \| Where to Buy? From the best in the business: DVinfo.net sponsors

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July 16th, 2004, 10:08 AM	#2
Tom Hardwick Inner Circle Join Date: Mar 2003 Location: Billericay, England UK Posts: 4,711	Yes, you can polarise the light at any point on its travels through all those lens elements. Go with any name you've heard of and remember - you don't need a circular polarisor - a linear one is just as good and a lot cheaper. tom.

July 16th, 2004, 06:36 PM	#5
Michael Bendixen Regular Crew Join Date: Oct 2003 Location: Corvallis, OR Posts: 109	I tried mounting a tiffen round polarizer on my pd-170 prime but I couldn't fit on the sunshade as well. Does anyone have any tricks. I really want that sunshade.

July 16th, 2004, 10:58 PM	#6
Nick Reed Regular Crew Join Date: Apr 2004 Location: Las Vegas, Nevada Posts: 78	I agree with Mike & Jeff. Use the polarizer on the front, not between lens elements. My understanding is that you need to use a circular polarizer if you want the auto focus to work dependably. I would choose a Hoya filter over a Tiffen when at all possible. All Tiffens are made from green glass, Hoya's are made from clear glass.