Pulled the trigger on this a few days ago and it came in today. Put it on the A7R2 that came last week (somebody tackle him) and walked around the farm this eve. It's undoubtedly overkill for my skill level, but knew I'd want this setup sooner or later and doesn't make sense to get it after the upcoming ride to Alaska. All shot at f2.8. FWIW, I have a test shot that I've done with all my 28mm stuff and the GM is clearly the best (thank God) - the 16-35 is the next best. f2.8 - 1/640 - iso100 - HDR 2 f2.8 - 1/1600 - iso100 - HDR 6 f2.8 - 1/800 - iso100 f2.8 - 1/640 - iso100 - 24mm f2.8 - 1/250 - iso100 - HDR 2 - 70mm f4.5 - 1/100 - iso100 - 70mm This one concerns me a bit, all of them in this series have some flare. Program mode/f7.1/HDR 6. .