Archives for March 2014

A reader asked me to run some tests to see how much the a7 suffered from shutter shock with and without the electronic first curtain shutter. I was intrigued. I decided to start with what should be a pretty easy test, so I used a 55mm lens. Since I haven’t tested the a7R with this… [Read More]

There’s an old technique in chemical photography for making etching-like images. You sandwich a negative and a positive of the same image together just slightly out of register, and print the whole thing on lith film, then you make your print from the lith. I thought I’d see what happened to one of the firehouse… [Read More]

While I was making the last series of firehouse exposures, it occurred to me that it might be interesting to combine the focus stacking with a pano. I didn’t have the right pano equipment, so I just used the vertical tilt on the Arca Swiss C1. The images stitched pretty well in Autopano Giga 3.0,… [Read More]

I went back to the firehouse yesterday to see if my new shoot-from-the-side plan would survive contact with the enemy. Last night I processed the images, and there were a few surprises. The first was that I was losing more than 8% of the vertical pixels to the perspective correction in Lightroom. I thought about… [Read More]

I taped an Imatest SFRPlus target to a mirror, and shot it straight on with the a7R and the Zeiss 55mm f.1.4 Apo Distagon at f/5.6, f/8, and f/11. ISO 100. Thanks to an ND filter, exposure times were 4, 8, and 16 seconds. Then I moved far enough to the side so that I… [Read More]