Archives for March 2014

Before I get started with some of what you can do with autohalftoning, I need to say a few words about workflow. In most digital photography, you do all your creative work on the file at its original resolution, and resize and sharpen just before printing. By following that procedure, you are prepared to make… [Read More]

I’ve given up on Photoshop for halftone processing of the firehouse images. I can’t see what I’m doing because the software that goes from file resolution to screen resolution has a bias in favor of black over white, so the images look darker than they should when the resolution is set so they fill the… [Read More]

When I presented this post to show how much the a7 suffers from shutter shock with and without the electronic first curtain shutter using the Zony 55, I wondered aloud why the a7’s mechanical first curtain shutter seemed to affect the sharpness less than the a7R’s mechanical FCS. In order to explore that issue in… [Read More]

I ran the same test as yesterday with the Nikon 180mm lens and the camera in portrait orientation. The orange line is with the electronic first curtain shutter, and the blue line is with the mechanical FCS:   No surprises here; without EFCS  the camera is more affected for vertical edges in portrait mode than… [Read More]

This is a continuation of the tests of the previous post to see how much the a7 suffers from shutter shock with and without the electronic first curtain shutter. Instead of the Zony 55, this time I used a Nikon AF Nikkor 180mm f2.8 ED. It’s an older lens, and not as sharp as some… [Read More]