Designed for 4K, 6K, and 8K productions, this 9-stop, 6.6 x 6.6" Schneider RHOdium ND Filter 6.6x6.6 9-Stopfeatures a 512x filter factor that provides a 9-stop exposure reduction. It helps you control IR contamination within the full visible and into the near infra-red spectrum. The neutral density material is sandwiched between two layers of white water glass, which prevents subtle color shifts that can occur with regular ND filters.

With the ND material sandwiched between glass it is protected from being affected by cleaning and polishing of the outside filter glass, which makes it an excellent choice whether you are a rental house or owner/operator. RHOdium Full Spectrum ND filters are the first to be tested using a tristimulus scan, which is a more critical color measurement method than previously used.

2.7 Optical Density    Schott Water-White Glass Construction    Darkens Entire Image    Allows Reduced Shutter Speed    Neutral Results, Visible, & IR Spectrums    Allows Wider Aperture    Include Padded Pouch

• 2.7 neutral density filter darkens the image, allowing you to shoot with a wider f/stop for shallower depth of field.
• Filter does not affect coloration of the image and is ideal for use with other filters.
• Attenuates infrared light, as well as visible and UV wavelengths, to maintain color neutrality and suppress color casts due to increased IR passing relative to visible light.
• Constructed from Schott water-white glass for increased optical clarity.
• Padded pouch included for storage and transport.

Related Questions and Answers

Q: 1. Does this filter have hard stops?

A: Not for the intermediary stops.

Q: 2. Can two of the Hoya 49mm Neutral Density (NDX8) 0.9 be stacked for additional density?

A: Yes you could... but I would not. That is extra glass surface to catch light and cause distortion and reflection. If this was an expensive lens with perfect coatings... what I caution you on would not be an issue. I would not.

Q: 3. Hi there! Does this filter have hard stops or does it rotate full 360? Thanks!

A: The B+W Tru-Match Vari-ND MK III Variable Neutral Density Filter does not have hard stops. The markings on the ring are merely reference points of how light or dark the filter will become when turning the ring.

Q: 4. Does the front thread turn when adjusting the ND level or stay static?

A: Yes, the front ring rotates when adjusting ND on the Schneider True-Match Vari-ND MKII Variable Neutral Density Filter (82mm).

Q: 5. is this ND filter ideal for video use? I plan on using it with a Sony FDR-AX33 4K camera.

A: Actually the newest ND filter by Hoya (the SOLAS filter series) would be more suited for video work:https://a href= http://www.bhphotovideo.com/c/product/1285182-REG/hoya_xsl_46irnd09_46mm_solas_0_9_irnd.html target= _blank www.bhphotovideo.com/c/product/1285182-REG/hoya_xsl_46irnd09_46mm_solas_0_9_irnd.html/a

Q: 6. Does this filter stop at each end of the adjustment or does it rotate past the end of each adjustment?

A: There are stops at each end on the B+W True-Match Vari-ND MK II Variable ND Filter.

Q: 7. Will the lens hood of the Sony 70-200 GMII fit with this filter installed?

A: The Schneider True-Match Vari-ND MKII Variable Neutral Density Filter (77mm) front threads are 77mm. Since the filter does not expand in the front ring, you can keep the lens hood on the Sony FE 70-200mm f/2.8 GM OSS II Lens attached.

Q: 8. what is difference between this and Hoya 77mm NDx400 HMC Filter B&H # HOND400MC77 MFR # A77ND400 (https://a href= http://www.bhphotovideo.com/c/product/155266-REG/Hoya_A77ND400_77_mm_Neutral_Density.html target= _blank www.bhphotovideo.com/c/product/155266-REG/Hoya_A77ND400_77_mm_Neutral_Density.html/a) ?

A: The Hoya ND4 only loses two stops of light, while the ND400 loses around 9 stops. The ND400 is a darker density that the ND4.

Q: 9. How does it compare to B+W Vario ND 1-5? What is the front size? B+W's front size is designed at 86mm for less vignette. Even so, I did find vigenette at 24mm on my 24-105 lens. How about the color shifting? B+W is shifting green on 1-3 stops.

A: The front filter thread of this filter is 82mm. Most filters will begin to vignette to some degree at 24mm. Color shift is nearly always present when using variable ND filters, but how much varies between filters.

Q: 10. How much does the filter weigh?

A: I don't have the means to weigh the filter directly. I does not weigh more than any other of the B&W filters in this particular mount. You can go to the manufacturer website for this exact product and ask the weight question. B&W Photo does not permit inserting outside links, so do a Google Search on Schneider Optics, once on the website, copy and paste the manufacturer's part number that B&H Photo includes, that will give you the specifics on this product. Then you will have links to ask the weight question of an associate. I hope this helps.