In this article its all about the compability of my M42 lenses to the Fotodiox Pronto (Techart PRO AF) adapter.
As the autofocus works with all lenses, better when its brigt worse when its darker, this article is about if the 4,5mm focusway is enough. (More Info about the adapter)
The test was done with this setup:
Sony Alpha 7RII + Fotodiox Pronto + Fotodiox M42 auf Leica M + M42 Lens
Lens |
Needs manual prefocus? |
prefocus steps |
additional info |
|
Carl Zeiss Flektogon |
no |
0 |
none |
| Helios 44-2 58mm f2 (Frontmod) |
yes | 2 | Only works with the center AF spot |
| Carl Zeiss Flektogon 35mm f2,8 (Frontmod) |
yes | 3 | Only works with the center AF spot |
| Zenitar Fisheye 16mm f2,8 |
no | 0 | none |
| Meyer Optik Görlitz Primoplan 58mm f1,9 |
yes | 2 | none |
| Exaktar 55mm f1,4 |
yes | 2 | none |
| Meyer Optik Görlitz Trioplan 100mm f2,8 |
yes | 4 | none |