[Jobs] Mammoth Camera DIY Polaroid Project

[Quantum Kevin]

Greetings HackLab people!

My name is Kevin, I'm a photo artist in Toronto and I am desperately
seeking anyone to help with my journey to mammoth size diy (sort of)
polaroids.  What is required is a diy light fixture panel made of single
color RGB LED strips and help adapting an existing design of a 3d printed
electro-mechanical shutter iris.

I am seeking someone to go over these following design ideas, approve them,
and then build them or at least help with paid consultation so I can build
myself.

The light is basically 100 or 200 meters of RGB single color LED strips in
a 4:2:1 ratio. The goal is 100K or 200K lumens with 5630 LED strips at 2000
lumen per meter sourced from a supplier on Alibaba.
Someone at an LED fixture company recommended HVAC red silicone thermal
sealant that would cure and stick the strips better to the aluminum backing
than the existing peel and stick glue.  This backing would have some of
those heat sink fin panels with PC cooling fans attached.  These lights are
only turned on for 5 -10 minutes at a time.  And I do need a way to control
the intensity of each color.

The shutter I need for my giant barrel lenses without shutters (5 1/2" and
another 9" diameter lenses), could be this 3d printed iris shutter for hvac
use:
https://www.printables.com/model/5122-servo-automated-iris-aperture-for-air-flow-control

The trouble here is that the motor isn't scaled up with the dimensions I
need, so a more fitting motor with more torque and speed will be needed as
well as a microcontroller with buttons I can push to actuate the iris. The
chosen cyclical rate or exposure time of the iris doesn't need to be dialed
in with buttons if that makes things easier as there is no needed screen or
read out. The time could just be set through a laptop/code.


A while back, I acquired a 24x32" view camera, the type of camera where you
put the cloth over your head. I plan to use the RA4 direct positive
experimental process that can be seen here:
https://www.youtube.com/watch?v=Q7JVMmL28Bo

The issue is you need a lot of light when using photographic darkroom
negative paper as a direct positive sort of film. the ISO or film
sensitivity would be close to 1-12.
If you use suitable flash, subjects often see spots after exposure, which
isn't ethical.
If one uses constant lights, you need a lot of light and a long exposure
time.


Thanks so much for reading this, I hope someone can help!

Be well :)

Best regards,
Kevin Huang

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