I would be interested in the comments of anybody who has adapted a Nikon lens to the Olympus micro 4/3 system. What are your thoughts? What problems came up? How do you feel about it overall?
I use a number of Nikons w/ my Olympus OM-D5. The longest is a 400mm f/3.5, the widest a 24mm f/2.8. I have a Novoflex adapter, the version that provides aperture control for AF-S lenses (though I no longer have any of those!). The adapter is well-built & gives proper infinity focus.
I can't say I've experienced any problems with the setup, but there are some things to be aware of. You'll need to focus manually, of course...this is quite easy, especially with longer lenses, with the Oly's in-finder magnification. You can place the point-of-focus anywhere within the central 85% or so of the frame and can select 5x, 7x, 10x or 14x mag. With the 400 I either use 5x or no mag at all depending on what I'm photographing. Also you'll want to experiment with focusing wide-open vs. at taking aperture...I tend to do the latter, though the 400 mostly gets used @ f/3.5. The Novoflex adapter doesn't show exact f-stops with AF-S lenses...you'd need to approximate them, best done via the camera's choice of shutter speed.
I got rid of my D-SLRs (kept some film bodies) largely due to nerve/spine issues resulting from years of lugging around heavy gear (photo-related and otherwise). The Oly is compact, light
and offers plenty good enough IQ for my needs.