The Heliopan 49mm Slim Circular Polarizer Filterhelps to reduce reflections and glare by filtering out light that has become polarized due to reflection from a non-metallic surface. This results in a noticeable increase in the saturation of skies and foliage, as well as clearer imagery when photographing in hazy conditions. A circular polarizer differs from a linear polarizer in that it supports full use of a camera's autofocus and auto exposure functions.

The front and rear surfaces of the filter both feature a single anti-reflection coating. Each coating helps to increase light transmission by reducing reflections, scattered light, and ghosting. Additionally, they offer protection to the filter substrate while helping to keep the glass clean for longer than uncoated glass.

This Heliopan filter is constructed from Schott glass for increased optical clarity and color fidelity. It features a slim brass filter ring for durability as well as jamming prevention. Its 5mm-thick profile does not have front threads in order to minimize the likelihood of vignetting with wide-angle lenses.

Minimize Reflections and Glare    Reduces Haze and Blue Cast in Landscapes    Enhances Color and Tonal Saturation    Slim 5mm-Thick Ring, No Front Threads    Front and Rear Coating    Schott Glass Construction    Brass Filter Ring

Reduce reflections and glare by filtering out light that has become polarized due to reflection from a non-metallic surface.

Arrange and filter directionally polarized light perpendicularly to the reflected light allowing for the absorption of much of the light.

Lessens haze in distant landscapes and provides more saturated, vivid colors.

Strongest effect when used at a 90° from the sun.

Single coatings on both the front and rear offer protection to the glass and help to improve light transmission and image quality.

Constructed from Schott glass for optical clarity.

Brass filter ring helps to prevent jamming and provides additional strength.

Slim 5mm-thick filter ring does not have front filter threads in order to alleviate the likelihood of vignetting with wide-angle lenses.

Related Questions and Answers

Q: 1. I have a sigma 10-20 wide angle lens.Will this filter cause vignetting?

A: The Heliopan 82mm Circular Polarizer Slim Filter will have about the least vignette on the Sigma 10-20mm lens but set at 10mm you will get some with pretty much any polarizing filter.

Q: 2. If I put this filter on a Nikon Z 24-70mm "S" lens, will the lens hood fit (on and reversed)? Will I see vignetting? Thanks!

A: The Heliopan 82mm Circular Polarizer SH-PMC Filter is not thin so it would vignette the 24-70 lens. This B+W filter would be a better option because ti is thin and will work with the hood for your lens: https://bhpho.to/31bpvbp

Q: 3. Is this filter suitable for Leica 18mm lens, without vignetting?

A: If your 10mm lens has a 77mm thread this slim filter should allow for use without vignetting.

Q: 4. What are those index marks on the filter ring mean?

A: The index marks do not have a specific number but can help you get to the same position.

Q: 5. Hello, what is the thickness of the frame without the thread?

A: I would recommend contacting Heliopan; Distributed By - H.P. Marketing CorporationTel: 800-735-4373 Website http://www.hpmarketingcorp.com/ Email info@hpmarketingcorp.com

Q: 6. How well does this filter work on a super wide angle, 11-16mm? Thank you!!!SuperSniperSal

A: I use this on the Tokina 11-16 2.8. At 11mm, you get some minor vignetting, but not a showstopper by any stretch.

Q: 7. What are the pros and cons of this filter being non-coated?

A: While it may be more expensive for coatings, they help protect the filter from dust, water, stains and scratch-resistant. Coatings also help with maintaining contract and color fidelity throughout the image.

Q: 8. will this fit a 35mm nikon 1.8 dx lens?

A: The Nikon AF-S DX NIKKOR 35mm f/1.8G Lens has a 52mm filter thread, so will be compatible with the Heliopan 52mm Circular Polarizer.

Q: 9. Hello, can you write me, what is the thickness of the frame without the thread?

A: Please contact Heliopan for that info; Tel: 800-735-4373 Website http://www.hpmarketingcorp.com/ Email info@hpmarketingcorp.com

Q: 10. I have Lee 100mm system. is it fit on lee kit?

A: If you purchase the LEE Filters 105mm Accessory Front Thread Adapter Ring, B&H # LEFARPFK105, then yes, the Heliopan 105mm Slim Circular Polarizer SH-PMC Filter would be compatible for use with the LEE Filters Foundation Kit.