August 15, 2017
I bought this wonderful lens a week ago. It focuses quickly on the Sony A7R. So far, I have used it to photograph a swallowtail butterfly. I shot handheld at 400 mm, f/11 aperture preferred, and the camera set the shutter speed over 1/1000 sec. The attached photos are edited and cropped. It is a delightful lens to use.
The lens uses a lot of power, so I bought a vertical grip and another battery (now 4 total).... Read More