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Model D6 LED Diving Flashlight
Material 6061-T6 aluminum with CNC processing
Lens Material UCL Lens
Type LED Flashlight
Emitter Type CREE
Emitter BIN 7090XR-E-Q5-WB
After several test shots I exposed 3 sec with backlight and 1 sec with frontlght. The flashlight was solar powered with a white bulb ...
UniqueFire L2 CREE XM-L T6 Single Mode 1000-Lumen LED Flashlight + 2pcs Batteries + Travel Charger Kit (Silver)
Parabola - this is my play with the article I read at DPS.
Materials used: (1)flashlight (2) string (3) hook in the ceiling
How I did this?
First, tie a flashlight with a string and hook it SECURELY in the ceiling. (my version would be tying a rubber band on the flashlight and hooked it in the ceiling fan string - you know those long strings that control the light and the fan? - that's what I had so, I used it). I suggest you swing the flashlight back and forth first to make sure that its secure. YOu don't want the 99c flashlight to your hundred dollars or thousand dollar lens.
Set your aperture to the minimum (mine was 32) and your shutter speed to bulb and adjusting it as needed (can go as long as you want, I have done it 100 - 120 sec). Turn the flashlight on, the all the lights off (you can do this anyway you want, I just want you to have another light source) then swing the flashlight however you want, then click it....
Do it however you please....Enjoy