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About Rosco

The Rosco #7300 Polarizing Filter is used in front of lights to reduce the glare caused by smooth surfaces such as glass, water, paper and certain metallic objects. It is especially effective when used in conjunction with a polarizing filter at the lens (cross polarization). It should be placed at a distance from hot lights.

Rosco Polarizing Filler is not intended to replace a camera lens polarizer. A lens polarizer may be used separately to reduce glare, but its effectiveness is then limited to a very specific placement of the camera in relation to the glare producing surface (about 55deg. off center axis). For this reason, it is best to employ polarizing filters on both the lights and the camera. This "cross polarization" technique allows greater flexibility in the placement of the camera.

This technique is especially useful when the camera is directly facing the subject, such as when copying artwork or animation cells. Most objects produce some glare. Even though it may be minor, this glare can cause a "washing out" or weakening of the object's color. "Cross polarization" can reduce this glare to provide richer color saturation.

To "cross polarize", simply place the Rosco polarizing Filter in front of the lights so that their axes are pointed in the same direction. Each filter is clearly marked to indicate the axis of polarization.

Summary of Customer Reviews

(7)
Customers most agreed on the following attributes:
Pros:
Durable (4)
Best Uses:
Indoors (4)
Reviewer Profile:
Semi-pro photographer (5)

Reviews about this item

Review Snapshot®

 
4.9

(based on 7 reviews)

100%

of respondents would recommend this to a friend.

Ratings Distribution

  • 5 Stars

     

    (6)

  • 4 Stars

     

    (1)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

Most Liked Positive Review

 

Excellent Product - Excellent Value

Polarizing filters are expensive. After searching local shops and finding nothing, then searching the Internet and finding filters that were the wrong size and badly overpriced, I found this 17 x 20 inch sheet. At nearly [$] it seems expensive but it made the filters the size I need at a reasonable price.The filters work as advertised so my project is moving forward. Couldn't do the project without large polarized light filters. Excellent product.

Reviewed by 7 customers

 
5.0

Just what the doctor ordered

By

from Kamuela, Hawaii  -  Semi-pro Photographer

I wound up having to photograph some flat pencil-on-paper artwork for a client. No matter how I set up my lights, I got highlights off the darker pencil marks. Then I remembered a lighting setup from a studio manual: Polarize your lights in one axis, and use a polarizer on the camera set 90 degrees to the axis on the lights. With the lights set 45 degrees to the artwork, I got zero reflections off the pencil lines. The 17x20 Cinegel was large enough for me to cut it in two and cover both lights. (These are small copy stand lights, not big soft boxes.) The Rosco gel is very uniform, was carefully rolled with tissue paper so there were no scratches, and was easy to work with. It had a little more curl than I was expecting, but clips held it to the lights with no issues. I tried crossing the two squares of Cinegel to see how good the polarization is. It's not 100% (no gel is), but it's about as good as your typical sunglasses. Good enough for what I was doing. I'm storing my filters carefully, but if I had this job to do over again and for any reason I couldn't use the ones I have, I'd buy this again in a heartbeat.

 
5.0

Glare Removal at its best

By

from Dixon, IL  -  Semi-pro Photographer

I use this to Polarize the light source in conjunction with a circular polarizer on the camera to reduce / remove glare when photographing oil paintings. After placing the lights with the proper modifiers this really works to reduce the glare.

 
5.0

Excellent for my purpose

By

from Bend, OR  -  Photo Enthusiast

I bought this to use in a cross-polarized lighting setup to photograph gemstones, jewelry, focus-stacked macro subjects and other things. Creating the setups involved cutting the filter material and making custom holders for it. Cutting to the exact shape was easy and the material is a far stronger polarizer than the Tiffen filter I'd planned to use with it (I'm going to mount a bit of the Rosco material on my camera instead of using the original filter. About the only thing I don't like is that the material comes tightly rolled in a tube and it can be hard to hold flat while marking and cutting it. This is a minor issue and definitely doesn't detract from the final utility of the product.

 
5.0

Quality Neutral Colored Material

By

from Waxhaw, NC  -  Semi-pro Photographer

Good neutral colored material. I use it polarize strobe lighting in copy work.

 
5.0

Great Quality

By

from Charlotte, NC  -  Semi-pro Photographer

Used on strobes when doing copy work to control reflections. Very effective when used with an optical filter on camera lens.

 
4.0

works well

By

from Denver, CO  -  Semi-pro Photographer

Great for photographing metal and artwork. Use mine to photograph oil paintings.

(1 of 1 customers found this review helpful)

 
5.0

Excellent Product - Excellent Value

By

from Salt Lake City, UT  -  Photo Enthusiast

Polarizing filters are expensive. After searching local shops and finding nothing, then searching the Internet and finding filters that were the wrong size and badly overpriced, I found this 17 x 20 inch sheet. At nearly [$] it seems expensive but it made the filters the size I need at a reasonable price.The filters work as advertised so my project is moving forward. Couldn't do the project without large polarized light filters. Excellent product.

Q&A

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Questions about this item:

Shopper  which way to insert into holder?
GARY L  Doesn't matter as long as you make sure they're all mounted in the same direction. I draw arrows on my mounts so I know which way the gel needs to be mounted. If you're using this with a CPL, I've found that mounting these so that the roll direction is vertical, then the white line on my CPL filters are directly on top of my lens. Makes it easy...
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