Kodak Colour Negative Film and Colour Print Making Materials & Processes – researched by Michael Talbert — A collection of material about early Kodak film processes. We learn that Kodachrome initially cost US$3.50 a roll in 1936 (this included processing) which is US$54 in 2009… and learn how complicated its development process was. And from there many other links. A rabbit hole.
The Leica M EV1 Just Entered a Spec War It Can’t Win and Destroyed Its Own Value Proposition — The headline itself is what I thought of this camera.
Flashes and Strobes
Photo Strobe Trigger Voltages — A list of flash strobes and their trigger voltage. It’s important to match it with your camera as some might have more than 100V.
Sam’s Strobe FAQ — Notes on the Troubleshooting and Repair of Electronic Flash Units and Strobe Lights (Archived) — Tips on repairing electronic flash units.