RFC: Standard Camera Power Consumption Testing
A RFC for a broader, and arguably more useful, standard for camera battery usage. Focusing on expanding battery life testing to reflect changes in the market and demographics since 2003.
Canon’s EF-M Mount’s Lens Type Detection
In order to select the correct voltages, clock rates, and communication protocols, Canon’s EF-M cameras use an interesting voltage divider circuit to detect what kind of lens is attached.
Mimicking Neutral Density with Stacking
A look at how to mimic the results of using a traditional optical neutral density filter on a digital camera with repeated captures and mean stacking in post production.
A Brief Summary of Raw Ideas
A brief overview of various aspects of raw file implementations.
Calculating the Angle of View: When Theory Meets Practice
A brief look at how the theoretical calculations for angle of view differs from how a real lens will actually preform.
Rear Button Focusing: Canon DSLR Setup Guide
Rear button or two button focusing is a technique to maximize control over the AF system. These are settings for using and configuring it on Canon cameras.
ISO vs. Effective Resolution (5D mark III tests)
Noise has an impact on most aspects of digital photography, this article looks at the affect noise on the effective resolution of Canon’s EOS 5D mark III.
Testing and Acclimating to a new Camera
A new camera is always exciting to get your hands on, at least it is for me. While I will definitely run out side and start shooting some random stuff — because, well, new shiny — before I put the camera into any kind of serious use, I run though an acclimation and calibration process […]
A Brief History of Focusing
Explore the history and evolution of focusing form view cameras, to range finders, to SLRs, and back in principal to the beginnings with mirrorless cameras.
Reflex Lenses and Doughnut Bokeh
Reflex lenses, or more properly catadioptric lenses, have long posed photographers with the possibility of a long telephoto lens at a fraction of the cost of the standard refractive lenses. A 500mm f/8 reflex lens for $200 or less compared to the $10,000 for a 500mm f/4 refractive lens. They’re simpler, manual focus, no iris, […]