The Tiffen 4 x 6" 85 Linear Polarizer Filter combines both an 85 color conversion filter with a linear polarizing filter to blend the effects of both filter types into a single, convenient solution.

The 85 color conversion aspect of the filter provides a warming effect and decreases the color temperature from 5500K to 3400K, allowing the use of tungsten balanced film in daylight conditions.

The linear polarizing aspect of the filter helps 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 linear polarizer differs from a circular polarizer in that it does not supports use of a camera's autofocus or auto exposure functions; it is best suited for use with manual cameras, such as view cameras, that are not dependent on internal mechanisms to determine focus or metering settings.

There is a total filter factor of about 6x, requiring an increase of 2.6 stops for normal exposure. Tiffen filters are made using ColorCore technology, a process that involves laminating the filter substrate between 2 pieces of optical glass and grinding flat to a tolerance of 1/10,000th of an inch. This filter measures 4 x 6" / 101.6 x 152.4mm.

Color Conversion 85 and Polarizer    Warming Color Conversion Filter    5500 to 3400K Color Temp Decrease    Helps to Eliminate Reflections and Glare    Reduces Haze and Blue Cast in Landscapes    Greater Color and Tonal Saturation    ColorCore Technology

Linear polarizer and 85 amber color conversion filter combination.

Total filter factor of approximately 6x requires 2.6 stops of additional exposure for normal results.

Warming 85 color conversion filter decreases color temperature from 5500K to 3400K for using tungsten-balanced film in daylight conditions.

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

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

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

Related Questions and Answers

Q: 1. Can you not use Starsense camera, with a Starsense HC, or do you need standard HC?

A: Good morning, If the StarSense autoalign system is used, it is mandatory that the dedicated StarSense hand controller be used for the autoalignment process. However, If the StarSense camera and the autoalign system is not used, the StarSense hand controller can be used to "manually" control the telescope in place of the standard Nexstar Plus hand controller.

Q: 2. does the new bmpcc4k fully support this lens?also what focal length will you get with the lens on the bmpcc4k?

A: Yes, the Pocket Cinema Camera 4K has an MFT Mount and will be fully compatible with this lens. That camera has a 1.9x crop factor, it will be the equivalent of a 80.75mm lens.

Q: 3. Will this lens fit the Sony FS7? Will the autofocus and aperture controls work automatically? Or manually?

A: I have no idea however it is a great lens on the Sony A7M2.

Q: 4. The description says the lens is quiet, but is the focusing quiet enough to use a hot shoe-mounted mic when shooting video? How's it compare to the AF-S in focusing noise?

A: The lens is very quiet and a hotshoe mic will not pick up any lens noise.

Q: 5. Is the new g master lens focus by wire ?

A: While yes, it is focus by wire, and while yes, I hate focus by wire, I recently picked up the 24-70/2.8 GM. That lens is also focus by wire, but unlike all it's little brothers and sisters, this one is not accelerated. If you spin the ring to a specific point on the lens, it will focus the same distance every time. I think Sony realized that they had made a huge mistake with all the preceding lenses (especially since they were marketing these cameras to the video community as well; the video community is heavily manual focus), and adjusted some parameters to do away with the whole acceleration thing because NO ONE LIKES IT. I'm so happy that this was addressed with the GM series. It had me super worried about my purchase until I held it in my hands.

Q: 6. What is the year of manufacture of the 8SE, before or post 2016?

A: The Scope started being Manufactured in 2008.

Q: 7. what is rrs tripod collar, in the note?

A: Really Right Stuff does not make tripod collard for Sony FE 70-200mm f/2.8 GM OSS Lens, they only make a foot which you can attach on the lens tripod collar. Please open the link below to review the dedicated tripod foot from Really Right Stuff. Really Right Stuff LCF-101 Replacement Foot for Sony FE 100-400mm f/4.5-5.6 GM OSS and FE 70-200mm f/2.8 GM OSS Lenses BH #RELCF101RF • MFR #LCF-101 https://www.bhphotovideo.com/c/product/1368075-REG/really_right_stuff_lcf_101_replacement_foot_for_sony.html

Q: 8. I plan to purchase the nikkor z 24-70 f2.8 S in the next couple of weeks. Is it still made in Japan?

A: Nikon NIKKOR Z 24-70mm f/2.8 S Lens BH #NIZ247028 is still made in Japan.

Q: 9. Can this lens be mounted on Olympus Pen Lite cameras? Specifically the E-PL6 model.

A: Yes buddy, you can. Actually you can mount this lens on any micro 4/3 compatible mount, particularly Panasonic and Olympus cameras, but not only those.

Q: 10. Can the new Canon RF mounts connect to this scope through a adapter?

A: You will need (2) items. The Celestron T-Mount Adapter for Schmidt-Cassegrain Telescopes BH #CETAC5 • MFR #93633-A Celestron T-Mount Adapter for Schmidt-Cassegrain Telescopes BH #CETAC5 • MFR #93633-A To attach to the rear of the scope and the Vivitar T-Mount to Canon RF-Mount Adapter BH #VIHFT2EOSR • MFR #HF-T2-EOS-R https://www.bhphotovideo.com/c/product/1494990-REG/vivitar_hf_t2_eos_r_t_mount_to_canon_rf_mount.html To mount on your camera body. Those (2) pieces will now screw together