Diamond cut from crystal-clear, water-white optical glass, Schneider filters are ground and polished to a precise flatness and planeparallelism (exact parallel relationship between front and back filter surfaces). Then, to ensure perfection, this is verified by a laser interferometer. Schneider filters are then checked with a densitometer for consistent density, and tested with a spectrophotometer for proper light transmission. It's due to this ultra-high consistency, that allows cinematographers to swap like filters mid-shoot with no discernible variation in color or effect. What's more, the unprecedented purity, color saturation and repeatability of Schneider filters virtually eliminate the need for lab color timing correction.

• Consistent precision
• Ultra durability
• Schneider filters work with long lenses

Diamond cut from crystal-clear, water-white optical glass, Schneider filters are ground and polished to a precise flatness and planeparallelism (exact parallel relationship between front and back filter surfaces). Then, to ensure perfection, this is verified by a laser interferometer. Schneider filters are then checked with a densitometer for consistent density, and tested with a spectrophotometer for proper light transmission. It's due to this ultra-high consistency, that allows cinematographers to swap like filters mid-shoot with no discernible variation in color or effect. What's more, the unprecedented purity, color saturation and repeatability of Schneider filters virtually eliminate the need for lab color timing correction.

Schneider filters stand up to the most rigorous demands on set or location. They feature Schneider's specially formulated hard anti-reflective (AR) coating to resist flaking, peeling and scratching. This proprietary coating also reduces light loss and flare to less than 1% per surface, compared to untreated glass that has a light loss of 4% per surface. Schneider screw-in filters feature virtually jam-proof brass precision mounting rings, while unmounted Schneider laminated filters are protected against delamination and edge-chipping by Schneider's unique Edge Seal, which also reduces edge reflection and edge flare.

The common perception among photographers and cinematographer's is that filters should not be used in front of long length lenses, due to the critically short depth of field of these lenses. This belief is often confirmed when poorly made glass or "plasticresin" filters are placed in front of a long lens, and the degradation of the image is visible simply by looking through the viewfinder. This degradation is caused by poor quality control, low-quality glass and poor glass grinding and polishing techniques used in the manufacture of such filters. Schneider filters have no such problems, and can be used in front of even the longest lens. Diamond-cut from high-quality optical glass, then ground and polished to precise lens-making standards, Schneider filters offer unsurpassed clarity, light transmission and color saturation with absolutely no visible compromise of image quality. Even when stacked, they are the clear choice for use with any lens.

Related Questions and Answers

Q: 1. Can this filter be used on a 600mm f/4E lens? I think it can because the lens comes with a 40.5 drop-in filter holder.

A: Yes&&That is the lens I'm using mine with

Q: 2. Is there a Benro filter kit for Sigma 14-24mm?

A: Hi--Benro does not have a filter kit for the Sigma 14-24mm lens.

Q: 3. Can you stack this circular polarizer on top of the Helix 2-5 VND filter?

A: The PolarPro Helix MagLock Burkard Edition Circular Polarizer Filter can be stacked on top of the PolarPro Helix Variable Neutral Density Filter (2 to 5 Stops).

Q: 4. Is it threaded to hold a 40.5mm ND filter like the standard tray in the 400 2.8?

A: No, the Sony Drop-In Circular Polarizing Filter for Sony FE 400mm f/2.8 GM OSS Lens is strictly for polarization and cannot have the filter changed.

Q: 5. Is the filter adjustment ring water resistant? Seems like a place that could potentially let in water into the lens during rain.

A: I am not sure but its a direct replacement for the filter that comes with the lens. I use a Thinktank cover any time Im shooting where the lens could get wet.

Q: 6. Does this come with a filter pouch?

A: Yes, an individual filter pouch is included in the box with Lindsey Optics 138mm Brilliant Rota-Pol Circular Polarizer for 4 x 5.65" Cine Matte Boxes.

Q: 7. I’d like to acquire a 10 stop ND filter that would fit my Nikon drop-in 40.5mm filter unit? I understand that it doesn’t allow for me to add the ND to the Polarizer.

A: The Nikon 40.5mm Drop-in Circular Polarizing Filter for Nikon AF-S NIKKOR 400mm f/2.8E FL ED VR Lens has a built in filter which can not be removed.

Q: 8. Hi just wondering if when using this filter on a 4.5mm wide angle B4 ENG lens, weather you get any vignetting when fully wide as wanting to put in in the front tray of my Croszniel matte box not the rotating back one. Based on filter being 4 x 5.65 sizing as mentioned above?

A: The diameter of the filter is 4.5. If this is a larger diameter than the front element of the lens you own, you should be good.

Q: 9. is the glass filter replaceable?

A: Unfortunately no, the glass is not replaceable.

Q: 10. Does the circular polarizer for the FE400 also fit the FE600?

A: Yes, this filter and its holder will work in the FE 600mm and all Sony telephotos with drop-in filters.