The 39mm Circular Polarizing Lens Filter (Plus+) from Urth cuts polarized light to increase contrast and boost color saturation and vibrancy by filtering out reflections from water, sky, glass, and non-metallic surfaces. A polarizing filter is an essential tool for landscape photography, as it saturates a blue sky to make clouds pop and reveals details under the surface of water obscured by glare.

Urth Plus+ filters feature 20 layers of nano-coating to provide easier cleaning and better protection against water, oil, and scratches. The nano-coating layers also provide a higher maximum light transmission and a more consistent transmission curve for sharper images and finer color transmission. This filter is made with Shott B270 optical glass mounted in an ultra-slim, rotating magnalium alloy filter ring. The slim design prevents vignetting when used with wide-angle lenses, while maintaining lightweight durability.

Circular Polarizing Filter    2.4x Filter Factor, +1.3 Stops    Helps to Eliminate Reflections and Glare    Reduces Haze in Landscapes    Schott B270 Optical Glass    20-Layer Nano-Coating    Rotating Magnalium Filter Ring    39mm Front Filter Threads    With Microfiber Lens Cloth and Tin Case    Limited Lifetime Warranty

• CPL Filter Plus+ cuts up to 99.9% of polarized light for increased contrast and color saturation
• 20-layer nano-coated German Schott optical glass
• Cuts polarized light's reflection from water, glass, and non-metallic surfaces
• This Urth filter funds local communities to plant five trees in areas affected by deforestation

Related Questions and Answers

Q: 1. Will the lens work with Nikon D5600 and also auto focus like a normal lens?

A: The Sigma 8mm f/3.5 EX DG Circular Fisheye Lens for Nikon F is compatible with the Nikon D5600 but in manual focus mode only. This Nikon 8-15mm fisheye zoom would work in AF mode on the D5600: https://bhpho.to/3oCwKEU

Q: 2. Will this work with the SL1?

A: This lens has an EF-M so it will only work on Canon EOS mirrorless bodies such as the EOS M50. The Meike MK-6-11mm f/3.5 Fisheye Lens for Canon EF is compatible with the Canon EOS Rebel SL1 and its EF/EF-S mount. https://bhpho.to/36eSiKy

Q: 3. 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: 4. will this work with a sony alpha 7 III?

A: Yes, this lens will work with the A73, however, it is a cropped sensor lens and will reduce the resolution on your camera by about 40%.

Q: 5. Is this simply a rebranded meikie 6.5mm lens? Everything I find suggest as such.

A: They are both made by the same manufacturer.

Q: 6. 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: 7. Will the Autofocus worked on my D3200?

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

Q: 8. For those of you engaged in shooting panoramas of businesses or other interiors, what tripod head would you recommend?

A: The Manfrotto 300N (3414) Panoramic Head is excellent for panoramic photography: http://bhpho.to/1mb07mw

Q: 9. 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: 10. 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.