Marc wrote
> Just taken from a 6-8C fridge, it would never be warmer than ambient air
> here. :)
>
> Cheers,
> Marc
> Noosa Heads, Oz
>
> On Friday, 25 March 2011, Ken Norton <ken@xxxxxxxxxxx> wrote:
> > Brian, there would be no condensation if the camera is warmer than
> > ambient air.
Yes, I was aware that ambient temperatures in coastal Queensland
never/rarely drop below 10 deg C.
There is another good reason, I believe, for using cold storage such as this
with (eg) silica gel, rather than a small heater, and it is this: higher
temperatures are likely to vaporise off the more volatile fractions of the
greases and oils used in lenses and cameras, thus leading sooner to a need
for a re-lube as the lubricants become degraded and stiffer, making focusing
and other movements more difficult. Cooler storage temperatures will get
around this real issue.
Now, as ( as I understand it) the specialised lubricants are difficult for
camera technicians to obtain, so the need to fend off the evil hour is greater.
Brian Swale.
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