This 52mm Haida Greystone CPL Filter 52mmfeatures an ultra-thin aircraft-grade aluminum filter ring that is only 0.122" thick, which helps prevent vignetting on wider lenses or when stacking multiple filters. This CPL (circular polarizer) filter helps you create images with vibrant colors, and it can also reduce reflections and glare in the frame, as well as be used to darken the sky in frame. The filter polarizes and then re-randomizes the polarized light, which prevents issues that can arise with some digital cameras, electronic viewing systems, and video taps when using a linear and not a circular polarizer.

Goldline Ultra-Slim Ring    NanoPro Coating Process    10-Layer Antireflection Coating    Water, Scratch, and Dust Resistant

Related Questions and Answers

Q: 1. Is this version I or II?

A: Canon 2585A001 52mm Circular Polarizing Filter (Rear Drop-in) B&H # CACPDI52 MFR # 2585A001 Is in fact the Version I filter. The Version II is the PL-C 52WIIa href= http://www.bhphotovideo.com/c/product/763727-REG/Canon_4774B001_52mm_Drop_in_Circular_Polarizing.html target= _blank http://www.bhphotovideo.com/c/product/763727-REG/Canon_4774B001_52mm_Drop_in_Circular_Polarizing.html/aHoweve4r, as mentioned the older Version I on this page will fit both the older Version I IS super telep-hotos and the new Mk II Canon super-telephotos

Q: 2. Does this work with the 200-400 F4.0 1.4X L extender zoom?

A: That lens requires the Canon PL-C 52WII 52mm Drop-In Circular Polarizing Filter.

Q: 3. Will this filter work with the Canon 200-400 f/4L with 1.4 extender?

A: I used mine with the 500mm f4 lens, so I cannot comment.

Q: 4. Can this filter be used with the 400 F2.8 L ISII?

A: Yes, it is compatible with that lens.

Q: 5. Will this work in a Canon 300mm 2.8 IS first version?

A: For 300 f2.8 IS first version you will need Canon 2585A001 52mm Circular Polarizing Filter (Rear Drop-in) BH #CACPDI52 • MFR #2585A001

Q: 6. Does this filter fit the Canon EF 600mm f/4 L IS II lens? Thanks.

A: Yes, it will fit and function just fine. This one is the older version designed originally to fit the Version I IS super-telephoto lenses, however, despite the fact that Canon has marketed a newer version II for the MkII lenses, this older MkI is completely compatible.

Q: 7. does this fit canon 500 f4 first generation?

A: Hi, yes, this filter will fit the first generation 500mm f/4L lens.

Q: 8. Does this come with a pouch to protect it?

A: This filter does not come with its own pouch. If you need a filter pouch, check out the Ruggard Four Pocket Filter Holder: http://bhpho.to/1jtnj0K

Q: 9. Does this fit 500 F4 II? Can you place alternative polarizing filter in place of the supplied i.e. B+W 52mm Kaesemann XS-Pro Circular Polarizer MRC Nano Filter ?

A: Yes, you can use any 52mm rear drop in filters with the Canon 500mm f/4 II lens.

Q: 10. Do we have ND variable for drop in filter for 600mm lens

A: https://a href= http://www.bhphotovideo.com/c/product/763737-REG/Canon_4773B001_52mm_Drop_in_Gelatin_Filter.html target= _blank www.bhphotovideo.com/c/product/763737-REG/Canon_4773B001_52mm_Drop_in_Gelatin_Filter.html/a is what you are looking for... Pro: interchangeable 52mm filters. Con: Some people express concern about filter/screw threads contaminating the inner lens elements after prolonged use. I personally see little use (potential) for ND filters on my 600mm lens. I would compromise and set my ISO to 100 and a high aperture for longer exposures. Of course, if you want to shoot at a wide open aperture, then you must use your camera in lower light. The best light is closer to sunrise and sunset, so you should be OK in most circumstances. Good luck with your selection :o)