I don't have the adapter, but I know that Sony's adapter which costs a lot more, has PDAF built into it, which is pretty cool. I think I read some review that says it works quite well, though not as fast as a dedicated DSLR.neuroanatomist said:Dylan777 said:EF-M lenses were designed to mount to EOS-M directly, no adaptor needed.
For Canon shooters, standard EF and L lenses are as good as gold. These lenses can still be used with EOS-M system with an adaptor, however, AF speed becomes slower.
The EOS M doesn't have a dedicated PDAF sensor, and it doesn't focus as fast as a dSLR. Compare AF speed with live view vs. PDAF on your dSLR (using Live AF, not Quick AF which uses the PDAF sensor...and note that it's even called Quick AF to differentiate it!) - that's why the M is slower. Even the 70D with on-CMOS DPAF focuses faster using the dedicated PDAF sensor.
AFAIK, the adapter has nothing to do with it. The native M lenses are also all STM, which is slower than USM. When I mount a fast-focusing L-series lens with ring USM (24-70 II, 70-200 II) on the EOS M via the Canon adapter, it focuses faster than my M22/2 or M18-55...have you had a different experience?
Upvote
0