The 40.5mm Urth Circular Polarizer Filter cuts reflections, boosts color saturation, and increases contrast by cutting out reflected polarized light. Polarizing filters cut out polarized light, which usually washes out images with silvery reflected light. CPL filters cut out 99.9% of reflected light from water, glass, and nonmetallic surfaces, uncovering bolder colors.

The 40.5mm CPL filter blocks diffused light from any direction. Simply rotate the outer element of the filter to adjust the level of polarization based on the direction of the light source. CPL filters give you greater creative control when there is excessive reflected light as in outdoor photography and filmmaking. All Urth CPL filters are built with premium quality materials, are guaranteed for life, and come with a protective travel tin case, a recycled cleaning cloth, and recycled plastic-free packaging.

Cuts Reflected Light in Any Direction    Increase Contrast/Boost Color Saturation    Shoots on Glass and Nonmetallic Surfaces

Related Questions and Answers

Q: 1. Will the Autofocus worked on my D3200?

A: The Sigma 8mm f/3.5 will not autofocus on a Nikon D3200.

Q: 2. I need to replace my front cap complete of my SIGMA 8 MM

A: Unfortunately, we do not carry Sigma lens caps. You would have to contact Sigma directly for assistance with your inquiry. According to Sigmaphoto.com's website, the product number for the 8mm EX DG Circular Fisheye Front Cap Adapter is CA483-72, and it uses a standard 72mm lens cap. You can contact Sigma for more information by either calling 1-800-896-6858 or by using the link included below.http://www.sigmaphoto.com/about-sigma/contact-us

Q: 3. is it work with nikon D7100 ?

A: Yes. It has the same mount as the all the D series. F mount.

Q: 4. is it compatible with Lumix G7?

A: Yes, this lens is compatible with the G7 and will produce the classic circle on black image associated with fisheyes.

Q: 5. Hey so Im trying to take a photo with this lens and i cant even hear the shutter. Why wont it work for my camera.

A: Check if Release shutter w/o lens is enabled.I believe it should be under one of the C.Fn menus.

Q: 6. I'm planning to buy this item but I just want to know first if this is compatible with D5000. If not, what camera will fit this lens?

A: The Sigma 8mm f/3.5 EX DG Circular Fisheye Autofocus Lens for Nikon AF is fully compatible with the Nikon D5000.

Q: 7. Looking for a circular fisheye to gt round images with a cropped sensor Canon 7D. Will this lens accomplish that?

A: Dear Eugene S, Thank you for your interest in Sigma products. The Sigma 8mm DG lens will give you a circular image only on a 24x36mm or Full-Frame format. For a camera with an APS-C size, like your Canon 7D, you need to look at the Sigma 4.5mm F2.8 DC Circular fisheye. : a href= http://www.bhphotovideo.com/c/product/535757-USA/Sigma_486_101_4_5mm_f_2_8_EX_DC.html target= _blank http://www.bhphotovideo.com/c/product/535757-USA/Sigma_486_101_4_5mm_f_2_8_EX_DC.html/a

Q: 8. do i need an adapter? because it fits but my camera doesn’t recognize it

A: It is a manual only lens. It will not communicate with the camera. On some cameras you have to set them to shoot with out a lens before they will fire.

Q: 9. If I mount this onto a full frame film camera (leica M6) with an adapter - will the image still be circular? Or will it be distorted/warped?

A: Although there are no adapters to mount this EF-M lens to a Leica M6, it would produce a circular image.

Q: 10. What is the diameter of the image circle on this lens?

A: At the edges, which are slightly softened, the diameter would be about 21-22mm. The lens creates a black-bordered image on a FF sensor which is about 24mm high.