Reviews
Meets all expectations
The M42 - EOS EF adapter does exactly what it should. It fits perfectly on my Jupiter-9 85/2 lens. Everything is tight and nothing wobbles. The packaging and processing of the adapter is excellent. For info. The standard M42 Russian lenses, which were copied from the 50s to the 90s, often have a back focus of 45.5mm. An EOS camera has a back focus of 44mm. The adapter has a thickness of 1.4mm (measured). That means I get a total distance of 45.4mm. Theoretically, 0.1mm is still missing, but with the focus in infinity it still works. Most old optics are used for portrait photography anyway.
18/04/2023