Archives for 2015

There’s a rumor going around that the Sony a7RII’s max synch speed (which is spec’d by Sony as 1/250 second) is reduced if the electronic first-curtain shutter (EFCS) is turned on. That didn’t sit right with me. Testing seemed called for. I mounted a Zony 55 on an a7RII and aimed the camera at a… [Read More]

In the previous post, I compared the performance at 200mm of the Sony 70-200mm f/4 G OSS FE to the Nikon 70-200 f/2.8 GII ED, with both lenses used on a Sony a7RII camera. In this post, I’ll do the same for the case when both lenses are set to 70mm. The overall scene:  … [Read More]

A reader commented that the Nikon 70-200 f/2.8 GII ED is a superior lens to the Sony 70-200 f/4 G OSS FE. In fact, he went so far as to say: The OSS 70-200 is not a very good lens and doesn’t compare to the Nikon 70-200 2,8 in any way that I could tell…. [Read More]

A reader asked the following: …did you find that AF focusing in the dark conditions with a nominal ISO locked @ ISO100 works worse than ISO for example being way higher ? Good question. Only one way to find out. Start with an a7RII and a Sony 90mm f/2.8 macro lens. Proceed as follows: RRS… [Read More]