[LRflex] Re: formula for lens cleaning fluid
- From: David Young <dsy@xxxxxxxxxxxxxxx>
- To: leicareflex@xxxxxxxxxxxxx
- Date: Sun, 17 Jan 2010 07:52:41 -0800
G'mornin, Dave!
You wrote:
>Yea, I know he's retired. I've had a couple of cameras rebuilt by
>Gerry, the latest was a M4-2, last fall. They always come back with
>a really neat feel to them.
Yeah ... his work is superb, isn't it?
>Microfiber cloths ??? Could you fill me in ?
Years ago, I'd received a small inheritance... and what I really
wanted was a 90 Summicron. However, the inheritance was very
small. Some searching turned one up in Seattle, at a about half the
going price.
The salesman showed it to me, with a new, B&W UV filter attached. It
seemed fine, but when I said I'd take it, he removed the filter. I
insisted that he sell it to me, "as shown" and eventually, we struck
a deal for the lens plus a perfect condition, used, B&W UV filter.
Later, home in Canada, I took the filter off to check everything
out. There was a significant smudge of "I don't know what" on the
front surface of the lens, which was not noticeable with a filter in
place. (It probably would not have made any difference, optically,
but it was distressing, to say the least.) Over the next few days, I
tried all manner of fluids, solvents & cleaning materials to remove
this "gunk" from the lens' surface, to no avail.
It quickly became apparent that the dealer had not been able to
remove the "gunk" either, and the price (and the filter) reflected
this. Had I not been so naive, in my youth, I'd probably not have bought it.
A few days later, I had to head for the prairies and, on the way out
of town, I stopped at my local dealer for film. While there, I picked
up one of the then very new, microfiber lens cloths - sold by Pentax,
for the princely sum of $20. Later that evening, while sitting in
front of my tent, in Banff, I brought out the lens and this new
cloth. I removed the filter, breathed on the lens, gave it one swipe
with the cloth ... and the smudge was gone!
I've been a believer in these cloths, ever since. I don't believe in
"over cleaning", but every now and again it must be done. I don't
use anything else and I've yet to be disappointed with the results.
These days, you'll nearly always find me with two ... one, relatively
grubby one, which lives in my pants pocket - for keeping my
eyeglasses clean - and a much better condition one, which resides in
my bag, for my lenses.
Cheers!
---
David Young
Logan Lake, Canada.
Wildlife Photos: www.furnfeather.net
Personal Website: www.main.furnfeather.net
A micro-finance lender though http://www.kiva.org
------
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