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Craig is perhaps best known for the software he writes for Stark Labs. He's the author of numerous free or affordable pieces of astrophotography software for the Mac and PC including PHD Guiding, Nebulosity, and DSLR Shutter. He's a frequent contributor here on Cloudy Nights and can also be found in the pages of Astrophotography Insight and Astronomy Technology Today.
Every tool has constraints on how best to use it. This helps us understand a bit more about those built into the Canon DSLRs.
The QHY10 gives you the size of a typical DSLR sensor, but in a package that gives you a full 16-bits worth of data (vs. 12 or 14 bits), regulated cooling (down to -45C below ambient), very clean electronics, and comes in a package that won’t tax your focuser and is well-suited for Hyperstar imaging. What’s not to like?
We're returning to the issue of signal-to-noise in this installment a bit, but it'll take us a chunk of the column to get there directly. The topic in this round is image sampling and what I want to impress upon readers is that there is a tradeoff here.
We're going to take a bit of a break from the series on SNR and explore another side of astrophotography. It's a side that many inclined to think of this as purely technical or as being entirely scientific have can have a tougher time with
In this installment, we'll talk about the fundamental unit of our image – the pixel. While it may seem like a pretty low bar to set here, understanding the pixel is
You've probably heard it before and if you continue to read my columns here, you'll hear it a hundred more times -- astrophotography is all about signal-to-noise ratios (SNR). But, what does that mean and can such a blanket statement be true?