The 67mm Kolari Vision UV/IR Cut H-Alpha Pass Pro 67mm Filterfrom Kolari Vision UV/IR Cut H-Alpha Pass Pro 67mm Filtercuts UV and IR light when your camera's native UV/IR filter isn't strong enough and lets some IR light pass through. It can also be used in combination with ND filters that do not cut out IR light. And it also works as a protective filter, as it causes no color cast nor exposure correction. This pro version features multicoated Schott B270 glass in a slim, knurled brass ring threaded on both sides. (The optional standard version has an aluminum ring.)

Alternatively, this filter can be used with a full spectrum modified camera to provide more than four times the sensitivity in the H-alpha (Ha) line compared to most cameras' native sensitivity, and greater than six times the sensitivity in the sulfur II line. A full spectrum modification entails manually removing the camera's low-pass filter and replacing it with a clear filter. (Kolari Vision can make the modification for you at a cost if you send in your camera to them.) This Ha filter has a similar transmission to Kolari's hot mirror filter, but with an expanded spectral response covering the H-alpha and sulfur II emission lines, making it also useful for astrophotography.

Cuts UV and IR Light    Ha/Sulfur II Increase with Full-Spectrum    Coated Glass Filter / Knurled Brass Ring    Dual-Side Threading

Related Questions and Answers

Q: 1. Does this XLR barrel adapter block Phantom power (48v)? I tried a different brand and it only worked on mics that did not need phantom power.

A: No, the Shure A15HP does not block phantom power and it does allow phantom power to pass through so it can be used with condenser microphones as well as dynamic microphones.

Q: 2. I am thinking of buying this filter or the B&W equivalent which is the best and better by how much? Thanks

A: Hoya and B+W both make some of the best filters on the market. B+W filters are among the highest quality filters available, especially the Kaesemann circular polarizer http://bhpho.to/1lEaCgA, which features Kaesemann foils, helping to provide the greatest amount of efficiency and color neutrality.

Q: 3. Can this also be used for line level signal? ex: to a powered speaker

A: Yes, the Shure A15HP In-Line High Pass Filter can be used for line level signal. Even though its main use is for microphones, the A15HP can also be used for other audio applications to reduce low frequencies below 100 Hz.

Q: 4. Does this fit the a7c?

A: The Kase Multicoated UV Clip-In Filter for Sony Alpha Cameras is not compatible with the Sony a7C camera.

Q: 5. Does this adapter color the sound at all? How transparent is it? Thanks.

A: It should not color the sound. Customer reviews mention that it is clean and does not compromise the sound. It is an effective tool for reducing unwanted low frequencies that create noise in the signal.

Q: 6. Will this work on the Tamron 150-600 mm zoom?

A: Yes. This filter works on the Tamron 150-600 and the Tamron 150-600 G2.

Q: 7. I have just purchased a Canon EOS 6D with 50mm f/1.8 II lens and was looking for a recommended lens protection filter. Is this the one or is it for specialised applications only.

A: I wouldnt suggest a circular polarizing filter for a protective filter. Polarizers are really meant to be used on sunny days to help cut down on the glare from non-metallic surfaces. They wouldnt be great to keep on the lens at all times, especially not when shooting in low light. You might look at a UV filter instead, such as the Hoya 52mm UV Haze NXT HMC Filter (B&H # HOUVN52).

Q: 8. Does this pass phantom power (48v)? The last xls barrel adapter I tried did not, making it useless form my application

A: Yes, the Shure A15HP does allow phantom power to pass through so it can be used with condenser microphones as well as dynamic microphones.

Q: 9. Will this case close with a 77mm circular polarizer filter?

A: The Kolari Vision Magnetic Hard Plastic Case (77mm) is compatible with 77mm circular polarizer filters.

Q: 10. Does this fit the a7siii?

A: KaseFilters does list the a7siii compatible with the Kase Multicoated UV Clip-In Filter for Sony Alpha Camera.