Have to agree - so long as the environment really is low dust.
It's intuitively plausible. But my experience of stripping down and
cleaning old manual lenses leads me to point out that getting rid of
all the dust in in domestic environment is bloody impossible.
Andrew Fildes
afildes@xxxxxxxxxxxxx
On 04/03/2007, at 4:50 AM, Brian Swale wrote:
>
> Hi,
>
> Somebody suggested that a miniature vacuum cleaner could drag in and
> deposit more dust that it removes - when cleaning camera mirrors and
> screens, etc.
>
> I don't believe this could be true. And by the way, if true, how is
> it that
> carpets are usually cleaner after being vacuumed than before?.
>
> Think about it. The concentration of dust in incoming air is
> extremely low.
> Probably much lower than for the mirror etc being cleaned. Also,
> incoming
> dust has by this time attained a velocity equal to that of the air
> it's in and
> there's no way it will escape that air train and avoid being caught
> in the
> cleaner dust-bag. The moving air and its contents ultimately are
> all going one
> way. Away from the camera.
>
> Brian
>
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