[Brass] 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!!!

[Solid ND] Works great on full spectrum cameras. Lets you get into the deep infrared on 720nm or higher converted cameras.

[72 mm] Great to have a non-variable ND option for Canon drop in filter style.

[Solid ND] I have never had a bad experience in my years purchasing with B&H, and this transaction was no different. Their ordering site is always easy to use the the delivery is always on time. This is a well run company. My 10-stop filter works like a charm.

[Solid ND] I used this filter for the first time today, having bought it late last year. Instead of the usual watery subjects, I used ferry-unload traffic; we live on a small island and traffic is hard to find. I took a photo without the filter (Nikon 1 J5, 6.7-13mm lens), and simply multiplied that exposure by 4100 (10 stops) for use with it. Below is a 30-second exposure.

[Glass] 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!!!

[Brass] High-quality ND instead of VND

[Glass] 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.

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

[0.76 lb] I wanted a 3 stop ND 112mm filter. I found Tokina is really good. I love it and it does perfect pictures.