CommanderLake
Newly Enlightened
- Joined
- Feb 19, 2020
- Messages
- 3
Not quite sure where to post this so please move the thread if necessary.
I just thought I'd share something I made with the almighty CPF.
The LED is a Cree CMA3090-0000-000Q0B0A57E
The heatsink is an old Zalman CNPS9700-NT
The Fresnel lens is 50CM diameter 25CM focal length (F0.5)
The frame made by me out of extruded aluminium sections, nuts and bolts.
The result:
And a crop:
The large tree in the lower half of the beam is about 500m from the light and the trees on the horizon about 1250m, measured on google earth.
Reduced the resolution to save bandwidth
Camera is a Canon EOS 6D with a Sigma 35mm f/1.4 Art
The exposure is ISO12800 f/1.4 1/90 processed with DxO PhotoLab to somewhat resemble what I remember seeing
It lights up the clouds too:
ISO1600 f/1.4 1/60 frame from raw video captured with Magic Lantern Lossless 1:1 crop
One last image on low clouds shining out of the upstairs window(typical British weather):
ISO3200 f/1.6 1/60
More pictures and info upon request.
I just thought I'd share something I made with the almighty CPF.
The LED is a Cree CMA3090-0000-000Q0B0A57E
The heatsink is an old Zalman CNPS9700-NT
The Fresnel lens is 50CM diameter 25CM focal length (F0.5)
The frame made by me out of extruded aluminium sections, nuts and bolts.
The result:
And a crop:
The large tree in the lower half of the beam is about 500m from the light and the trees on the horizon about 1250m, measured on google earth.
Reduced the resolution to save bandwidth
Camera is a Canon EOS 6D with a Sigma 35mm f/1.4 Art
The exposure is ISO12800 f/1.4 1/90 processed with DxO PhotoLab to somewhat resemble what I remember seeing
It lights up the clouds too:
ISO1600 f/1.4 1/60 frame from raw video captured with Magic Lantern Lossless 1:1 crop
One last image on low clouds shining out of the upstairs window(typical British weather):
ISO3200 f/1.6 1/60
More pictures and info upon request.
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