There’s been some interest in how the Leica 16/18/21 Tri Elmar ASPH  — aka the WATE, for Wide Angle Tri-Elmar — performs on the Sony a7R. Because it is designed with its exit pupil quite a ways from the sensor plane, there is reason to suspect that it should work well on the a7R. The… [Read More]

This continues an analysis of the Coastal Optical 60mm f/4 APO and the Leica 50mm f/1.4 Summilux ASPH on the Sony a7R. In the previous post we looked at the center. Now we examine the right side. Along the right side of the image, the Coastal Optical lens is a little low in contrast at… [Read More]

I tested the Coastal Optical 60mm F/4 APO and the Leica 50mm f/1.4 Summilux APSH on the Sony a7R. These are both truly impressive lenses, and in the Leica barely edges out the Coastal Optical lens in the center. However, in the corners, the a7R smears the Summilux images, and it’s no contest. The scene,… [Read More]

There’s been speculation on some of the photo boards that the Leica M240 color may have something to do with a thin, and therefore not particularly effective, IR filter. The thin filter is desirable to avoid sharpness difficulties at the corners of cameras where the back end of the lens is close to the sensor… [Read More]