A British man has built his own lens with a super fast 35mm f/0.4 equivalent bokeh that is constructed around an old episcope projector lens and a mechanical system for controlling focus.
Schlieren imaging is a fairly standard optical technique for visualizing heat, sound, or pressure differences in air. Technically, a schlieren system is able to see clear disturbances in air due to slight differences in the speed of light in the air. The technique can be sensitive enough to see the heat rising off a human hand at room temperature.
Since launching the MagBeam via a Kickstarter campaign two weeks ago, MagMod has raised nearly $200,000 for the flash extender and gobo. But at least one notable photographer has an issue with how the product is being marketed: David Hobby calls one of MagMod's claims "100% bulls**t."
Back in April, we shared the first of cinematographer Mark Vargo's informative series of videos on different photographic concepts. The videos are meant to educate photographers and videographers alike on these concepts so that they might "unleash their creative potential."
The first video was on the types and uses of light meters, and now Vargo has finally released the second video in the series, dubbed "Let There Be Light."