I extensively compared 3 softboxes for the purpose of making a focusable deep parabolic reflector (with the light source attached to a focusable tube, not to the speedring as intended). This article sums up my results. A focusable parabolic reflecto…

A custom Sev5n filter box for 75x90mm filters. I made my own because nobody makes those commercially. It's compact, light and sturdy. Here's how to do it. What makes a good filter case? Slide-in filters are probably the most useful accessory for lan…