On 22 Aug 2007 at 8:41, Malcolm Stewart wrote:
> ----- Original Message -----
> From: "Bob" <[EMAIL PROTECTED]>
> To: <[email protected]>
> Sent: Wednesday, August 22, 2007 12:06 AM
> Subject: Re: EOS My 5D had water inside it - dead...
>
>
> > Malcolm Stewart wrote:
> >
> >> Got caught in a torrential lunchtime downpour in Cambridge, UK a few days
> >> ago - just like being in a really energetic car-wash for around 10
> >> minutes. And, I was unable to find any decent cover.
>
> > My only problem with your recovery is the temperature...... 45C = 113F
> > Might be hazardous to the internal components, in particular the lenses.
> >
> > When my ham radio gear, and later my grandson's cellular phone, got
> > 'dunked' we put them in the oven overnight with just the pilot light. Of
> > course newer stoves probably have electronic igniters so the lowest temp
> > would be my second choice.
>
>
> Hi Bob,
>
> Canon's operational spec for their gear is 0degC to 40degC, so I was relaxed
> about the camera in this particular Microwave + fan-oven etc. combo.
Mind you, in the analog days it was specified as starting at -20C.
> I did
> protect it from radiant heat from the elements in its roof by placing 2
> layers of kitchen foil (alumin(i)um) above it. Fortunately the lenses only
> suffered water externally and didn't need any heat treatment. (I have
> wondered if (non-L and unsealed) USM lenses would have survived as well on
> account of their use of piezo elements. I'm not going to try dunking my
> EF300 f2.8L IS USM though!)
Today I repaired the flashlight from an old firefighter vehicle, that
had been standing in the rain with a broken cap/cover....after
opening the housing of the electromotor, it looked like one solid
lump of rust....the housing had acted as a bucket, leaving the
internals submerged permanently, rotor glued solid to the
stator....while just a simple driphole would have prevented 99% of
the disaster....idiots.
But because the darn thing was pretty rare (an airport-version, with
3 condensors, each at a different horizontal angle (level, up,
down)), the least I could do was give it a try.
(yes, you knew there was an interesting optical aspect in this story,
of course....;))
After 2 hours of dismantling & scrubbing/sanding under a running tap,
and careful reassembly, plus liberate use of rust-preventive/moisture-
repellant liquids, low and behold, it rotates again....:))
--
Bye,
Willem-Jan Markerink
The desire to understand
is sometimes far less intelligent than
the inability to understand
<[EMAIL PROTECTED]>
[note: 'a-one' & 'en-el'!]
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