The #7300 17" x 50' Polarizing Filter from Rosco is used to minimize or eliminate reflections from shiny objects like water, metallic items, glass or certain papers. When used for copying art, this filter is indispensable since it will eliminate the glare normally generated by hot lights. Even though glare may not obviously seem to contaminate your shot, when checked on your camera's LCD or film, glare can cause the image to appear washed out and flat. By placing this filter within a frame, i.e. barn doors, it can be used in conjunction with the polarizer on your camera for maximum effect. It should be used at a distance from hot lights.

Eliminates Reflections in Glass, Water    Can Be Used With in-Camera Polarizer    6 mil Acetate Base    Neutral Gray Appearance

Related Questions and Answers

Q: 1. Will this lens work on a Canon M50?

A: Not unless you have an EF to EFM adapter.

Q: 2. The canon site states this lens can be used with the extender 1.4x and 2.0x is this correct?Pete

A: Teleconverters are not compatible with lenses with a focal length wider than 70mm, including the Canon EF 17-40mm f/4L. The Canon website specifies that this lens can be used with extenders, meaning extension tubes. Those extension tubes are the Extension Tube EF 12 II http://bhpho.to/VMSt9k and the EF 25 II: http://bhpho.to/1tyEhgB

Q: 3. Does this work with rebel T6i ? The one I just bought works with my T4i but not my new T6i?

A: Yes, this lens is compatible with the Rebel T6i.

Q: 4. Will this lens work with MFT mount?

A: This is a Canon EF mount lens and is not natively compatible with a Micro Four Thirds camera. However, you can use this lens on a Micro Four Thirds camera with the use of an adapter. eeeeee

Q: 5. Would this do for horses, pets and indoors? There is one more expensive so wondering which is better. This is on sale and suggested over kit lenses with 80D. Would love feedback soon?

A: Definitely yes. I have used it for 4 dogs and a cat both indoors and out. Quite pleased with the results and ease of use.

Q: 6. Will this lens work with Canon R5 with Canon RF to EF adapter? If so, will this lens produce a 1.6x crop on R5 body or full frame? How is lens for video? Fast and quiet? Or should I get RF version instead?

A: This is a full frame lens, so there will be no crop of any sorts. The lens is going to work pretty well for both Photo and Video. The RF variant is going to focus faster, more accurately. The lens is also significantly more expensive. I would get this 17-40mm lens if I were in your shoes.

Q: 7. Can this be used with Canon Rebel

A: Yes it can be used with Canon Rebel models (film and digital). The Canon 17-40mm f4 USM L series lens is compatible with all Canon EOS cameras (film and digital).

Q: 8. Is this lens good for high school basketball

A: If it is your only lens, you'll find it too short overall, BUT this focal length pairs nicely with a 70-200mm lens for wider angle images under the basket.

Q: 9. Being that this is for an apsc camera, does that mean that it is 17-55 and not multiplied by the 1.6x crop factor. Ik that with full frame lenses it is, but being that this is for an apsc I'm just confirming that it is true 17-55

A: Whether this is an aps-c lens or full frame, you still have to do the math on a cropped sensor camera. You will always have to do the magnification factor with any lens, for example 17-55mm x1.5 crop factor.

Q: 10. Hi, would this lens work on the Canon Rebel T3i?

A: Yes, it is 100% compatible with the T3i.