Archived posting to the Leica Users Group, 2018/04/17
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]?FWIW, I'm converting to 100% Sony a7r with the KolariVision Ultra Thin (UT) filter (sensor cover) that matches the M9's. All of my FE mount lenses are going to be sold. Leica M mount wins. I'll use the Voigtlander VM-E adapter between the M-mount optics and camera. What I've found is that most of my Leica M lenses (or M mount optics like the outstanding Voigtlander 35mm Ultron) have different settings on the VM mount that optimize sharpness. When there is a class cover over the sensor, it's not surprising that Leica M optics with different ray angles are optimized at different settings. (It makes one wonder about the older M lenses and how well they really work on the M9.) The Loxia 35mm was the last straw for the Sony FE mount optics. If that market has standards that low, I'm out of there. The Loxia 35mm is a dog; even at f/8 the corners are really soft. It's on its way back to the dealer. I so appreciate the Leica M standards -- super sharp and compact. I might add that not all Leica M glass works well with the KolariVision UT filer on the Sony. The very wide, symmetrical designed M lenses have too obtuse ray angles for the Sony even with the UT glass cover. This includes the 28mm f/2.8 that I rather liked on the M9. So, for wider than 35mm, I use the WATE. Paul www.PaulRoark.com