The other million bet beam

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Subscribed! Very informative thread, it goes somewhat hand in hand with this one by DrJones but this thread has pictures that make it better! DrJones' thread coupd use some simple diagrams!!

Flashlight Optics - Dome, Dedoming and Throw

I wanted to write a longish text about flashlight optics for quite a while now, starting with all the optics and photometry basics, up to the details of what throw depends on and why, including how dedoming increases throw, all with a coherent line of argumentation and some experiments to try. I even started writing that document, but it seems I just don't find the time to finish it in reasonable time. I now decided to take a shortcut and just do a very short version of it, especially focusin…