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I manage to image at up to

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18 December 2020 at 11:01 am #583591
Peter Goodhew FRAS
Participant

I manage to image at up to 100% humidity. I have a dew shield and dew heater strap around the refractor glass. I find that I get the same misting of the glass as you show if I turn the heater on just as I start imaging – and it can take an hour or so to clear. So I turn the heater on well before I start – at least an hour beforehand.