The Tiffen 6 x 6" Deep Green #61 Filter is 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 6 x 6" / 152.4 x 152.4mm.

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. 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.

Q: 2. 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: 3. Will this filter fit on a Zeiss 28mm Biogon lens?

A: Yes, the Leica E46 will fit lenses with a standard 46mm filter thread such as the Zeiss 28mm Biogon. I use the Leica E46 Green filter on a Zeiss 50mm C Sonnar lens. However, I mostly use the excellent B+W F-Pro MRC filters at 1/3rd the cost of the Leica branding.

Q: 4. Is there a pitch modulator on the Korg nautilus 61?

A: The specs for the Nautilus do list "phase and modulatable pitch per oscillator" for the 6 Variable Phase Modulation (VPM), Waveshaper and Ring Modulation Oscillators.

Q: 5. 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: 6. 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: 7. What is the Wratten equivalent for the Leica yellow, orange, and green contrast filters?

A: Those wratten equavalent is 8, 21, 25.

Q: 8. can a Korg PA1000 fit? the height of the PA1000 is 5.3" and this bag is 5" but being that its a soft case, will it work?

A: The Gator GKB-61 Keyboard Gig Bag may not work with the Korg Pa1000 61-Key Pro Arranger. As a better option, use the Gator GK-61 Keyboard Case with Wheels for 61-Note Keyboard (B&H # GAGK61) or the Gator GKBE-61 Economy Keyboard Bag (B&H # GAGKBE61), which are both listed as compatible for use with the Pa1000.

Q: 9. How do I connect a subwoofer, 2 bookshelf speakers (Klipsch KD-51M) to my computer. Will this work or can you recommend another?

A: The Pyle Home PDA29BU.6 Compact Stereo Amplifier with Bluetooth (BH # PYPDA29BU6) has no subwoofer output. Consider the: Sony STR-DH590 5.2-Channel A/V Receiver (B&H # SOSTRDH590): https://bhpho.to/2IabE6Q

Q: 10. Does this case fit for the Yamaha PSR-SX700 keyboard and the case's outer pocket fit the AC adapter and its accessories like a piano pedal?

A: Yes, the Gator GKB-61 Keyboard Gig Bag is compatible for use with the Yamaha PSR-SX700 61-Key Arranger Keyboard. The AC adapter should fit in the outer pocket, but it's difficult to say whether accessories like a piano pedal will also fit in the pocket, as it depends on the size and shape of the pedal.