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p.1 #16 · p.1 #16 · Selling Nikon D500+200-500 to buy a Sony 100-400 G | |
You won't find anything that focuses as fast as the Sony on the a7rII, but there is some copy variation. The first copy I rented was better 200-300 than it was 300-400, where it wasn't great. The second copy was better all-around, particularly at 300-400. That copy I would've put up against my Nikon 200-500 so far as resolution at the long end goes, even with the extender. The OSS + SteadyShot works out as well as the Nikon lens' VR on a native body, something you won't get adapting.
After renting the Sonys as well as the Sigma Sport and Contemporary 150-600's + MC-11 adapter and an a-mount Tamron 150-600 G2, I ended up buying the Tamron. The a-mount version lacks VC, so it was the lightest of the 150-600's and less than a pound heavier than the Sony (though the LAEA3 puts it at about a pound difference). The Sigma's OS didn't get me anything over just using SteadyShot alone, so it wasn't worth the weight difference to me. The sport appears to have a nice build quality differential, but I don't know if that translates into better durability. Optically, the performance was so similar across the three, I let other factors weigh in more heavily. I eliminated the Sony because I'm using a modified sensor that doesn't play well with the lens, particularly not with the extender. I eliminated the Sport because it was overbuilt for my needs and expensive for the performance. I choose the Tamron over the Contemporary because it has a dovetail foot, a clutch lock for the zoom at any position, and, should I want to use AF, it was the fastest, most consistent performer among the adapted lenses.
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