Re: Best Lens cleaning fluid?

"Bart van der Wolf" <(E-Mail Removed)> wrote in message
news:3f017714$0$49099$(E-Mail Removed)...
>
> "Jim Phelps" <(E-Mail Removed)> wrote in message
> news:(E-Mail Removed)...
> SNIP
> > Bart,
> >
> > There is some thought that breath is not the best to clean lenses as
it
> > may contain a significant amount of bacteria. That may lead to FUNGUS.
>
> There is fungus in the air we breathe, which is different from bacteria.
> Fungus usually thrives in moist atmospheres, so storing damp is a no-no. A
> short period of dampness, which evaporates if you're not quick enough with
> the microfiber cloth, won't hurt, and the microfiber cloth will remove
lots
> of residue with only light pressure. If you live in tropical environments,
> it is good practice to store sensitive equipment (and stuff like leather
> straps and casings) in a closed container with an adequate amount of
> desiccant (e.g. silicagel). Abrupt temperature changes from cold to warm
and
> moist, will cause condensation on the surface, so letting equipment
> acclimatize in it's "dry" container before use is recommended.
>
> > Now, I'm not sure if I buy this 100%, but if it has an iota of truth to
> it,
> > I'm not sure I want to risk a lens that cost $4,500.00!
>
> There is no risk for short periods of time. Prolonged storage/use in
adverse
> conditions should be avoided if possible. FWIW physical contact with the
> coating by rubbing with cloth or cotton or paper is probably more
damaging,
> but needs to be performed occasionally (but not frequently). It's a
> trade-off...
>
> Bart
>
>
Bart,

You are correct about the fungus in the air we breathe. However, most
fungi need a quite, warm, humid place to live and eat. Why feed them with
our bacteria? Like I said, there's some discussion about this, so I thought
I'd throw it in the mix.

Jim




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Jim Phelps