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Hi Glenn,
All valid questions you ask. I have been thinking a lot about all of these issues, moisture being the significant one and that’s certainly something I want to avoid. I’ve been thinking of how I can integrate a desiccant tray into the system but it’s going to be a case of think of the best solution and see if it works.
Re: filter fogging up, I already have this issue when using my camera with my Newt and have already addressed it with a lens heater.
The control of it is another thing I’ve considered. You’re right that cycling the Peltier isn’t recommended however it’s temperature could possibly be controlled by varying the heatsink fan speed ? As far as repeatable results, I do fresh calibration frames every session anyway because the ambient is always changing so if I have to continue doing that it will be just less gain out of the project rather than making things worse.
Thank you for your interest. I’m keen to hear what you think about the pitfalls and what you think of my solutions ?
Cheers
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