The whole point of a mirrorless camera like the M5 is the small size... seems kinda counter-intuitive to then fit it with a big old full frame capable L-series lens, that's made even larger by the required adapter! I imagine the optical qualities would be fine... but wonder if the auto focus performance might take a hit.
The M5 has caught my eye, too (finally, an M-series with a viewfinder... and an electronic one with focus peaking, too boot!). Seriously considering getting one to carry when I don't want/need a big old DSLR. I haven't bought one yet... but have been looking into it... and the lenses to use upon it, which I consider the more important part of any camera system.
If you already have some EF and/or EF-S lenses, it's great that the M5 can share them too. But I wouldn't buy an M5 planning to also buy a handful of L-series to use on it!
It's a minor problem with M5 that as of now there's a pretty limited selection of EF-M lenses, which also appear to only offer STM focus drive, are mostly zooms with variable aperture, oen "pancake" 22mm prime and a rather too-short focal length 28mm macro, neither of which really get my lens lust revved up.
Normally I'd refrain from suggesting third party products on a manufacturers forum, but since EF-M lenses are so limited, I'll make an exception this time....
I'd probably get one or two of the EF-M zooms as "walk-around" lenses. But I'm also very interested in some of the Rokinon lenses now being offered. Some of those look pretty impressive. They're manual focus and manual aperture only, but for the type of shooting I'd want to do with the M5, I don't see that as a big problem. 12mm f2, 21mm f1.4 and 50mm f1.2 might be the lenses I'd choose....and all three of them can be purchased for under $1200 (USD).
I'm also interested in some of the adapters that allow old Leica M and screwmount be used on the M5. And there are other adapters for other rangefinder systems. They'll be manual focus and aperture only, too.... but suddenly there are literally millions of vintage lenses that might be given a new lease on life with the M5!
All this was a lot less practical with earlier M-series cameras that lacked a viewfinder.... But the M5 is a real game changer. Hopefully Canon will also take a look at the Rokinon lenses, Fuji mirrorless system, Contax G mount, etc and give the M system some serious lens-love! The sky is the limit, now that we have a viewfinder!
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Alan Myers
San Jose, Calif., USA
"Walk softly and carry a big lens."
GEAR: 5DII, 7DII (x2), 7D(x2) some other cameras, various lenses & accessories
FLICKR & EXPOSUREMANAGER
