As much as I love the idea of 85/1.8 for portraits I am concerned about focus accuracy. At f1.8 you need an eye detect like on Sony or Panasonic or very tight focusing points (but that is the other discussion)
Actually, no you don't. I've had the EF 85 F1.8 for over ten years, and used it with the 20D, 50D, 7D, 7DII, M, and M6. Never had any problems getting the eye I wanted in focus, even wide open. The superb AF of the 7DII, with its 65 cross-type points, certainly makes that even easier than previous DSLR systems, but they coped perfectly well too, even the 9 points of the 20D. The M and M6 also work really well with that lens. I'm sure eye detect focusing is a fine feature, but it's hilarious how some people immediately assume that cameras that don't have it can't reliably achieve focus on eyes.
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As the length of a thread approaches 150, the probability that someone will make the obvious "it's not the camera, it's the photographer" remark approaches 1.
Alastair
http://anorcross.smugmug.com
Equipment in profile