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Acclimation
Dec 16, 2017 00:55:18 #
When I use my telescope I have to take it outside for 20 minutes or so to acclimate it, or my initial viewing is very poor and distorted. I was wondering if cameras should receive the same treatment. Does anyone prep their cameras for outdoor sessions or do you just grab and go?
Dec 16, 2017 07:20:37 #
It all depends on the weather!
If it's warm inside and cold outside, or vice verse, yes I let my camera have 20-30 minutes to "get used to the new environment.
Mostly though, if I go from cold to warm: Winter weather outside, heated indoors.
Or air-conditioned inside to summer heated outside.
Do you wear glasses? If you go from cold to warm they will immediately fog up.
Same phenomenon with your telescope or camera lenses.
If it's warm inside and cold outside, or vice verse, yes I let my camera have 20-30 minutes to "get used to the new environment.
Mostly though, if I go from cold to warm: Winter weather outside, heated indoors.
Or air-conditioned inside to summer heated outside.
Do you wear glasses? If you go from cold to warm they will immediately fog up.
Same phenomenon with your telescope or camera lenses.
Dec 16, 2017 07:28:48 #
Morning Star wrote:
Mostly though, if I go from cold to warm: Winter weather outside, heated indoors.
Or air-conditioned inside to summer heated outside.
Or air-conditioned inside to summer heated outside.
Right!
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Dec 16, 2017 08:22:10 #
Dec 17, 2017 12:30:50 #
Morning Star wrote:
It all depends on the weather!
If it's warm inside and cold outside, or vice verse, yes I let my camera have 20-30 minutes to "get used to the new environment.
Mostly though, if I go from cold to warm: Winter weather outside, heated indoors.
Or air-conditioned inside to summer heated outside.
Do you wear glasses? If you go from cold to warm they will immediately fog up.
Same phenomenon with your telescope or camera lenses.
If it's warm inside and cold outside, or vice verse, yes I let my camera have 20-30 minutes to "get used to the new environment.
Mostly though, if I go from cold to warm: Winter weather outside, heated indoors.
Or air-conditioned inside to summer heated outside.
Do you wear glasses? If you go from cold to warm they will immediately fog up.
Same phenomenon with your telescope or camera lenses.
Going outside there are times the humidity is so high, I think my eyeballs fog up too! LoL
Dec 17, 2017 13:14:52 #
LA
Loc: Little Rock, AR
The situation with a telescope with a tube is different in a couple of ways from a camera/lens. Yes, optics can fog up in either case, but a problem with telescopes is that even a fairly small temperature change can produce air currents within the tube until the scope comes to its equilibrium temperature. The currents consist of air at different densities and therefore different refraction indices and this plays havoc with your fine optics. Also as the temperature of the optics change, the optics distort because of differential expansion/contraction, and this is much more important in the telescope because of the high magnifications and the fact that you are often working at the limit of resolution.
Dec 17, 2017 16:22:26 #
GENorkus wrote:
Going outside there are times the humidity is so high, I think my eyeballs fog up too! LoL
Guess you'll have to let your eyeballs have time to acclimatize then. With my spectacles or lens I'll grab a "wipey" and wipe the condensation off.
But I don't think they've invented wipeys for eyeballs yet...
Dec 17, 2017 19:46:36 #
broncomaniac wrote:
When I use my telescope I have to take it outside for 20 minutes or so to acclimate it, or my initial viewing is very poor and distorted. I was wondering if cameras should receive the same treatment. Does anyone prep their cameras for outdoor sessions or do you just grab and go?
depends on the weather. Can't go out of an air conditioned house with out it fogging up. Can't come in during the winter without the same problem. But other then those two times, I run out and shoot all the time.
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