[Aluminum] Yeah not sure what that other guy is on about. This isn’t a perfect CPL but it’s not supposed to be. It just allows you to adjust the natural polarizing effect of a VND, not fully remove reflections. Anyways, it’s well built, a breeze to use, has minimal tint/color-shift and very little artifacting. My favorite VND I’ve ever used

[0.285 lb] After long ago exploring IR images with Kodak chemical films, I purchased the Kolari K665Pro and K720Pro to use on a stock Canon EOS 5D Mark IV and Canon lenses. I chose the Kolari Pro series for their sharp cutoff spectra as well as their filter coatings compared to Kolari's base series or Hoya. The Kolari Pro quality / performance / price point trade-offs were great IMHO. Starting with the 665, I set the camera for manual exposure (typically bracketing around +2) and manual focus (typically longer focus settings), and the stock sensors pick up enough red for good composition and control. It has been a short learning curve and I am most pleased with the images that the Kolari filters are generating: awesome black and white landscapes, cloudscapes, and waterscapes, and excellent starting points for post-processed color shots (native red hue or channel swapped)! No discernible color aberration until I push the image magnification to its pixel limits. The coatings have been great with tough lighting angles - no flares - and stay remarkably clean in windy, dusty environments! Continuing experiments with the 720, which pushes the limits of the stock sensors but still works well. Highly recommend the Kolari 665Pro for anyone getting into IR!!!

[Aluminum] High-quality ND instead of VND

[82 mm] I have only tested this filter on my Lifepixel-modified Canon R6 (v1), but I like it already. It produces some really interesting color combinations that my other Lifepixel IR filters do not. Samples below are with custom white balance in-camera.

[Multi Coated] Best high quality filter for my infrared photography. Very happy with it.

[0.285 lb] Best high quality filter for my infrared photography!

[Aluminum] Picked this up for use on my Canon R5C and I'm very impressed with the overall build quality. This is my first product by Kolari, but they have been on my radar for years with the Infrared conversions and magnetic filters they make. Happy to say this adapter and drop-in filters are very well built. The auto-focus features and communication with lens to camera has so far been perfect with my Sigma EF lenses, so I'm very pleased with that. The filters themselves are super clean and do not appear to have any color shifts or aberrations. And best of all, the control wheel for the VND is actually the right amount of resistance! Doesn't budge if you bump it (like the Canon brand one), but smoothly spins when you need to adjust it. At this price point, I'd recommend this kit over the Canon OEM alternative all day.

[Glass] Works well.
Would be great if there was some other strength (8-stop, 10-stop, 2-stop, etc.)

[Multi Coated] After long ago exploring IR images with Kodak chemical films, I purchased the Kolari K665Pro and K720Pro to use on a stock Canon EOS 5D Mark IV and Canon lenses. I chose the Kolari Pro Gen series for their sharp cutoff spectra as well as their filter coatings compared to Kolari's base series or Hoya. The Kolari Pro quality / performance / price point trade-offs were great IMHO.

I posted a review of the 665 and can not say enough positives about it!!! 5 stars!!!

Still experimenting with the 720. It is slightly more technically challanging on a stock camera, but just as impressive as the 665 so far. Highly recommend the Kolari Pro Gen series for anyone getting into IR!!!

[Aluminum] I’m new to IR photography. I’m using a Sony F828 with the magnet hack (Google it) & various external filters. I started with standard filters such as 720nm & 850nm but wanted something to pass more color for a more interesting twist. This 550nm delivers; it was worth the wait. It’s a lot of fun and making me enjoy photography again. There’s a lot of information out there about post-processing. Play with channel swapping (Photoshop channel mixer) to flex your creative muscles.