The problem is that CO2 cylinders are banned from airline flights.
That is why squeeze blowers are popular. I bought the American
Recorder device just before the ban went into effect. It works fine,
but only at home or when transported by a car. Having one method for
air travel and another method for other situations is just more than I
want to deal with. There are also arguments against this high pressure
sort of blast because the high pressure can push dirt into all sorts
of places you do not want it like the viewing system and into the
electronics.
I am not as concerned with the anti-vacuum argument as some others. If
your sensor and other bits have accumulated dust from repeated cycles
of trapping a new load of dust laden air behind the lens which
settles. If vacuuming can remove dust from, say, 20 lens changes and
leaves the equivalent of 2 or 3 lens changes in the mirror box because
of inrushing air, it is a net improvement that is significant. My
problem with it is that most dust sticks a bit and you need both a
vacuum and a brush to dislodge it. My conclusion is that if something
like a sensor brush works, why complicate things?
Stuff that sticks. Sometimes something gets welded to the sensor cover
and I find that alcohol just does not dissolve the "glue" that well.
One of those alcohol free cleaners seems to work with a lot less
pressure to clean off the spot.
Winsor
Long Beach, California, USA
On / December 13, 2007 CE, at 2:07 PM, Chuck Norcutt wrote:
> Your mention of a closely controlled powerful jet of air/gas suddenly
> reminded me that I had stashed the following URL a great long time ago
> planning to follow-up some day. I had completely forgotten it until
> you
> mentioned using the Dust-Off and wanting something better.
> <http://americanrecorder.com/catalog/index.php?cPath=10&osCsid=07fa265d8f0291b797302443605d6e8a
>
> >
>
> This is from American Recorder (principally audio stuff) but this
> cleaning kit ($44) is a set of installable CO2 cartridges for a
> trigger
> controlled nozzle. They also now offer a digital sensor cleaning kit
> featuring this and some liquid and swabs (maybe not needed) or a
> smaller
> CO2 only kit without the case and only 3 cylinders for $22. I think
> it
> was this $22 kit that caught my attention as being cheap enough to be
> worthy of a test buy.
>
> Seems to me this might be exactly what you're looking for. High
> pressure, directed spray with pure CO2 so no concerns about
> contaminants
> from the Dust-Off spray can. So as not to get confused reading the
> description the product name is CO2 in addition to using CO2
> cylinders.
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