That's not quiet true, Falcon a manufacturer of darkroom gear, sold a
compressed freon product was safe for use on negatives and slides,
called Dust Off. I expect that would be perfectly safe for sensors. as
it was for mirrors and focusing screens in film SLRs. However with the
Freon ban in most of the industrialized world it is no longer
available. For a while the same company produced a similar product
using different propellent, haven't seen it in years, but I bet that
would also be perfectly safe for sensors with minimal special handling,
(It was possible to get Falcon products to spew forth frozen gas,
usually at an unsuspecting victim with much ensuing hilarity, and
possible fistfights, but that's another story).
On 1/9/2015 11:42 AM, Bipin Gupta wrote:
By jove, Mark Sir, canned air is never ever used on sensors. The
propellant inside is actually wet and can leave droplets when agitated
or when the air is almost depleted.
This product was developed in the desktop era circa 1980 to clean key
boards, printers etc.
Here is an extract from reviews from Amazon com:-
3M does you a dis-service with this can as I noticed that the air
coming out of this can is weaker than some others and leaves particles
on the surfaces I am trying to clean,
I also see much more spray emitted from this can than i've seen out of
others. The instructions say to, "Always hold container upright to
avoid spraying liquid". Regardless of how vertical I hold the thing I
get spray.
It contains a bitterant which is meant to keep people from abusing the
product to get a cheap high. But the bitterant lingers in the air and
makes my tongue and lips numb.
Regards.
Bipin.
--
I don't want to achieve immortality through my work; I want to achieve
immortality through not dying.
-- Woody Allen
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