Yeah. That's weird isn't it? I was waiting on some folks to publish that test a while ago. I've mentioned it on Reduser elsewhere, but......
After extensive (and boy do I mean extensive) testing I can recommend two IR/ND solutions for Mysterium-X sensors.
- Tiffen Hot Mirror IRND Filters - (filmtools link)
- Formatt Hot Mirror/Neutral Density Filers - (B&H link)
The Tiffens come in the range of 0.3-2.1. The Formatts go from 0.3-2.4.
As of this day, 04/23/2013, the Tiffen HMIRND provide the "best" possible image out of camera with the Mysterium-X under daylight and tungsten. The Formatts are close though and a bit cheaper for the set.
I had a full set of Formatt HMND filters in 77mm screw on and 4x5.65. The 77mm work well on still lenses. My Formatts 4x5.65s were magically transported away from me recently. At the end of next week I'm ordering a range of Tiffen HMIRND glass.
Dragon Thoughts: The new Red Dragon sensor and bodies will have enhanced IR protection through a new IR-OLPF design. Once I have a Dragon in my hand I will test literally everything all over again. It's said that we may not need IR protection due to the new tech, but until the testing is done we can't know for sure. For Dragon we'll likely be looking for filtration needs in the 0.03-3.0 range, which is nice because the Motion Mount covers exactly that range and everything in between. I'm sure the IR-OLPF will help or solve the IR pollution (or perhaps some combination of the new color science may assist with this). Where I'm concerned is deep filtration like 1.8-3.0.
Expect some fairly thorough tests again soon.