I’ve posted images here, and here, of my on-again, off-again slit-scan series, Timescapes. I’m back at it, this time trying to make longer exposures. Here’s a four-hour one: Mike Collette, who runs Betterlight, the company that makes the scanning back I’m using for this series, told me about a mode in which the back will… [Read More]
Search Results for: slit scan
It’s been clear to anyone testing the Sony alpha 7R that its shutter is a different animal from what DSLR shooters are used to. I’ve been reporting on what that shutter does to pictures of test targets, of oscilloscopes, and of real subject matter. But what do I know about what goes on inside the… [Read More]
In the last few months, I’ve been examining ways to get the highest signal-to-noise ratio (SNR) in digitally-captured images. I started with ETTR, then explored the issue of optimal in-camera ISO setting. Now I’d like to explore how to get your camera punching above its weight – producing images with the SNR of a larger… [Read More]
I went through yesterday’s D4 testing, this time with the D800E. First, a check to make sure there are no serious self-heating problems. Exposure was 1/4 second at ISO 6400 at one frame per second. Subject was the back of the lens cap: And the standard deviation (noise of the noise floor) looked like this:… [Read More]
Here’s another slit-scan sunset. This one would have been pretty soporific if not for a passing plane.