The 49mm 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 49mm 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. 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: 2. What does the Guide Plate do?

A: It's a guide is used for cutting filter gels - like ND, color etc - that slot into the back of the lens. Most likely not something that you will use very often.

Q: 3. Will this Sigma 8mm lens with an FTZ adaptor work on a Nikon Z8 in manual focus mode?

A: The Sigma 8mm lens will work with a Nikon Z8 and the FTZ adapter.

Q: 4. Will this lens produce vignetting on a crop sensor like a 60D?

A: I do think so, because as far as I Know EOS60D is not a full frame but has a conversion factor of 1.6, whereas 8mm lens is a true fish eye leading to a 180field of view. You will then have a reduction of this field of view.

Q: 5. Will this product work properly on my Canon 7D Mk I. Also, will it work in a 5D Mk IV?

A: No, this lens is designed to fit and work only on the Canon cropped sensor mirrorless cameras. Like the M6, M6, M50 and M100

Q: 6. Possible to get a short video clip to see the effect of the 190deg please?

A: Here are three video reviews. https://bit.ly/2DMJTku https://bit.ly/2sX14JV https://bit.ly/2sXmQx1 Here are posted still images https://bit.ly/2DKY2OZ

Q: 7. If I mount this to a full frame film camera (Leica M6) with an adapter - will the image still be circular, or will it be distorted?

A: The image would be more distorted than fully circular, but you will be reducing the effective area used, so it will look more like distortion than a circular look.

Q: 8. Has anyone used this lens with a SpeedBooster adapter on a Sony APS-C body? I'm wondering if you get the full circular fisheye effect. Since I'm going to move to Sony full-frame eventually, I'd rather buy this than the 4.5mm crop sensor lens.

A: I doubt anyone has done this specific combo before. Though you will get no ill effects from doing so. You will still get a circular fisheye effect from this lens.

Q: 9. What camera type does this lens go with?

A: This lens is recommended for a full frame Nikon body, however you can use it on a cropped sensor camera and will produce an image similar to approximately a 12mm.

Q: 10. 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