The Tiffen 5x5" Deep Green #61 Filteris a general contrast filter, primarily for use with black and white film. This dark green filter helps to lighten foliage and other green subject matter within the image while darkening red tones. The #61 filter is also used for tri-color separation and tungsten projection when used in conjunction with a #25 red and a #47 blue filter.

This filter is 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. It measures 5 x 5" / 127 x 127mm.

Green Filter for Tri-Color Separation    For Black and White Contrast    ColorCore Technology

Deep green tri-color separation and tungsten projection filter when used in conjunction with a #29 red and #47 blue filters.

When used over the lens, this filter helps to lighten foliage and other green subject matter within the image while darkening red tones.

Related Questions and Answers

Q: 1. What is the difference between this, mfr no. 5051, and the "non-shoulder" version, mfr no. 5001?

A: The "Shoulder Version" is extremely slip resistant through the implementation of an innovative material combination of Finnish elk leather on the outside and Mongolian yak leather on the inside. The "Non Shoulder Version" does not have the Mongolian yak leather on the inside.

Q: 2. Could you please advise if theNITECORE Red Filter for 34mm Flashlight can be used for scuba diving up to 40m? Thank you.

A: The NITECORE Red Filter for 34mm Flashlight is not designed for scuba diving. If you do need a red filter on a dive light than has a 34mm bezel it will work. For recommendations on dive lights that include a filter or have a red beam please email uw@bhphoto.com.

Q: 3. is there a "gate reverb" effect for snare drum or toms?

A: Looking at Korg web page, it does not mention specifically, "gate reverb" tho it does include software. (the DAW and possibly the Izotope may include dynamic controls, like the gate/reverb) Contacting KORG USA 316 S Service Rd Melville, NY 11747 631-390-6500 From Korg Page: Free bundle of music software The NAUTILUS comes with a diverse variety of music software from Izotope including “Ozone Elements” which lets you not only create songs but also master them using AI, “Skoove” which will help you improve your keyboard playing skills, “Reason Lite” DAW software, as well as software synths from KORG and other brands. In other words, the moment you get your hands on this synthesizer you'll have a variety of tools to help you take your music to the next level.

Q: 4. Hello, this filter has a square shape? Do you sell it in a round shape? I need to use it on a 58mm lens, do you sell any adapters to use it?

A: You can use this adapter to mount this filter to a 58mm lens: https://www.bhphotovideo.com/c/product/186726-REG/LEE_Filters_Gel_Snap_3x3_4x4_Filter.html

Q: 5. can the dataproducts inkjet cartridge 61 be used on the hp deskjet1510?

A: Probably yes if it is a direct replacement for the HP cartridge. However, based on the pricing from B&H for HP products, why is it necessary to substitute?

Q: 6. Will this stretch some to fit flashlight with a 35mm bezel?

A: The Nitecore Blue Filter for 34mm Flashlight is made for 34mm bezels. It is too small to fit onto one that is 35mm.

Q: 7. (re Tiffen #11 Green Filter, 43mm) What is the thread pitch for this filter? Will it fit on a Zeiss Biogon ZM 35mm F2.8? Thanks!

A: This filter works on all lenses with a 43mm filter thread size, the pitch is .75

Q: 8. Are those filters helpful or needed when using DaVinci Resolve color grading ?

A: Yes, the Tiffen 4 x 5.65" CC20G Green Filter will help you while color grading if your scene has a magenta tone and you don't want the tone in your final video.

Q: 9. Does this filter fit a Leica Summilux-M 35mm f/1.4 ASPH. Lens (Black)? Thanks, Robert

A: Yes. The Leica Summilux-M 35mm f/1.4 ASPH takes 46mm filters.

Q: 10. does this fit a pa4x 61 key?

A: The internal dimensions of the Korg Soft Case for KROSS 61 or KROSS2 61 are unavailable and would therefore not make this product a valid candidate as a case for the Korg PA4x keyboard.