Signal-to-Noise ratio is a fundamental concept in engineering. It sounds intimidating — and it can be, if you really dig into it — but at a high level, the idea is simple: noise is an inescapable fact of life no matter what type of signal we’re talking about, and one…

What is E-T-T-R E-T-T-R (Expose-To-The-Right) is a photography technique in which the camera sensor is exposed to more light than is needed for an optimal exposure. When done correctly, it yields better noise performance. Why E-T-T-R Most scenes captured by a camera have elements that are bright and those that…

Innovations in camera technology, the democratization of technical knowledge and advancements in image processing software have all helped usher in a Golden Age of photography. No matter what the genre — landscape, street, portrait, travel, abstract — talented photographers all over the world are creating incredible art. One would assume…

I feel like the topic of ISO invariance doesn’t get the attention it deserves, specially considering the very real dynamic range gains it offers to advanced photographers in low-light conditions with high-end cameras. It may have to do with the fact that it’s a complex and confusing topic. At least…

It’s possible that a RAW photographer can get by just fine without knowing a thing about gamma, since all gamma-related functionality is taken care of under-the-hood — by the RAW converter, the video card and the display. But it’s a little like exercising without understanding the underlying physiological mechanisms…