Sun May 27, 2018 4:47 pm
Rick, GH5S shooters tried the BMCC Speed Booster and it vignetted on the larger MFT 18mm wise sensor in both 17:9 and 16:9 mode, (it does work on the GH5/4 in sensor crop mode), and the BMCC SB should work on the new camera in HD window mode, so this is a no starter. If BM goes with the thinner cover glass/filter, than Metabones will be quick to respond with a new SB for the new Pocket 4K.
Interesting Leon the BMPCC SB did not fit, was it too tight in the MFT mount or ? Seeing as the csmera you tried is a pre-production test Camera, the Mount May be adjusted to correct MFT standard, as the Micro Camera Mount was. The original Pocket camera MFT Mount was on the loose side on many of the esrly cameras, and Metsbones adjusted the mount on their SB to adjust, after receiving complaints about the mount being too loose.
That said, when the Pocket csmera first came out, only SB available was the MFT/Nik MFT, which I had from my AF100, and it worked well with my Zeiss ZF 25, 28 f/2.0 lenses, and 35mm lenses, as well as some Nikon glass I had at the time. The sensor glass thickness difference became an issue when shooters started mounting the Sigma 18.35 f/1.4 and other very fast lenses being used wide open, especially wide angle lenses, that started become “soft” due to the difference in FFD caused by the thinner cover glass.
So we may be back to the same issue, depending on BM’s sensor cover glass choice, unless the cover glass is provided by Sony as part of the sensor? if there is an issue, Metsbones will be fast to respond with an appropriate new SB, as they did with the previous two cameras. We will just have to wait and see. Meanwhile, I would not be rushing out to buy a SB until the camera is released and this tested.
Cheers
Denny Smith
SHA Productions