The Heliopan 27mm 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 brass filter ring for durability as well as jamming prevention.

Minimize Reflections and Glare    Reduces Haze and Blue Cast in Landscapes    Enhances Color and Tonal Saturation    27mm Front Filter 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.

Dual threading with 27mm front filter threads permits combining with other filters.

Related Questions and Answers

Q: 1. Will this fit the sigma 150-600 lens?

A: Yes, it will.

Q: 2. What is the filter factor, i.e. how many stops of light are reduced?

A: The filter factor of the Sony 82mm T* Circular Polarizer Filter is 1.6x, i.e., 3 stops of light are reduced.

Q: 3. Can I place this filter on the outside of a Fuji Super EBC Protector 39mm? (clear glass) without an adverse effect?

A: I never stack polarize filter on top of clear protector

Q: 4. Will this filter fit the 39 mm filter holder in my Nikon 300 mmm f/4 lens ?

A: Absolutely not

Q: 5. WIll this fit on the NEW 70-200 mm 2.8 II lens with the lens hood attached?

A: Yes Sony 77mm T* Circular Polarizer Filter will fit on that lens with lens hood attached.

Q: 6. Where would the CPL be located when stacked? Front or back of the circular ND filter? thanks.

A: Most likely I would stack on the outside not the back in order to adjust polarizer

Q: 7. Does this filter have front threads so one can attach a lens cap? I cannot tell from the photo and the SPECS do not say.

A: You can attach a lens cap to the front of the Sony 67mm T* Circular Polarizer Filter.

Q: 8. Does the rear ring ever bind or cross-thread?

A: PolarPro 77mm QuartzLine Circular Polarizer Filter is made of Brass and well built. It will not bend / cross thread under normal circumstances.

Q: 9. Is this filter multi-coated? What is the difference between this filter and the Hoya 43mm NXT Circular Polarizer Filter (B&H # HOCPN43 MFR # A-NXT43CRPL)?

A: This polarizer is not multi-coated. The difference between this filter and the NXT filter is that Hoya NXT filters have over 97% average light transmission, and are constructed from heat-resistant, high-transparency optical glass.

Q: 10. 1. Can this circ-polarizer be stacked with a wonder-pana solid ND filter? e.g. using both polariser and ND-8 filter (or ND-32 filter) together? 2. If they can be stacked, will vignetting be observed on the Nikon 14-24 with two circular filters stacked? 3. Can we stack a circular wonderpana 145 filter with their rectangular 66 graduated ND filters? 4. If we can stack a circular with rectangular GND, will vignetting be observed on the Nikon 14-24 with total 2 filters (1 circular and 1 rectangular)?Thank you!

A: WonderPana 145/66 system allows stacking of one round filter like the polarizer and one rectangle filter or two rectangle filters. With the adapter for the Nikon 14-24 lens you can use this set up on that lens.It is designed not to vignette.