The 49mm, 665nm Infrared Lens Filter Pro from Kolari Vision is a circular filter with 49mm threading on both sides. This pro edition features multicoated glass in a brass ring with knurled edges. This 665nm version requires a full spectrum modification to be made to your camera in order to function properly. This entails manually removing the camera's low-pass filter and replacing it with a clear filter. Once that's done, this 665nm filter will work as intended to block visible light up to 665nm from the light spectrum. (Kolari Vision can make the modification for you at a cost if you send in your camera to them.)

Blocks Visible Light up to 665nm    Coated Glass Filter / Knurled Brass Ring    Requires Full Spectrum Modified Camera    Dual-Side Threading

Related Questions and Answers

Q: 1. Does this fit on smc pentax m 50mm 1:1.7 lens?

A: The Sensei PRO 49mm Aluminum Lens Hood will fit the Pentax m 50mm 1:1.7 lens

Q: 2. Does this fit the Voigtlander 50mm lanthar?

A: Yes, the Voigtlander APO-LANTHAR 50mm f/2.0 Aspherical Lens is compatible with the Sensei PRO 49mm Aluminum Lens Hood.

Q: 3. Will this work for a 6 x 4.5 medium format 60mm (@35 in 35mm format)???

A: If the lens has a 49mm front thread the hood will fit. But chances are you will get some vignette on the edges of the frame.

Q: 4. Will this fit on a 1:2 50mm lens?

A: Yep, currently using this on my 50mm, fits perfect!

Q: 5. will this fit super takumar 135mm 3.5?

A: Yes. It fits all 49 mm Super and Super-Multi-Coated Takumars I have tested on (283.5, 35/3.5, 50/1.4, 551.8, 135/3.5).

Q: 6. who had tried this lens hood on the Sony Sonnar FE 35mm f/2.8 with UV filter attached?

A: The ansnwer is dependent on whatever camera is being used. The Sensei PRO 49mm Aluminum Lens Hood B&H # SELHM49 is for 50mm or longer focal length lenses on full frame cameras. As such, this hood will vignette. On an APS-C sensor camera, it has good chance of not vignetting even if used with a filter.

Q: 7. Is 43mm lens cap fit the 50-230mm lens?

A: The Fujifilm 50-230mm has a 58mm diameter which means you'll need a 58mm lens cap.

Q: 8. does this cap fit the Pentax 18-55mm lens?

A: No. For the Pentax DA 18-55mm f/3.5-5.6 AL WR Zoom Lens you would need a 52mm lens cap. http://bhpho.to/V8DGFL

Q: 9. Will this: B+W 49mm #900 Rubber Lens Hood B&H # BWLHR49 MFR # 65-069598 Work with a 35mm lens on full frame; specificaly on Sony RX1(R) and without vignetting?

A: I shoot 35 mm film so I suppose one could say that I shoot full frame. I do not experience any vignetting. I have two or three of these and have used them for over 25 years. Obviously I like them.

Q: 10. Does it fit on canon EF 50mm f/1.8 STM lens. The thread size of my lense is 49mm where we usually put uv filter..

A: Yes, since your filter size is 49mm the hood will either screw on to your UV filter or directly on to the camera.