On 22/01/2009 23:23, Sridhar Ayengar wrote:
Pete Turnbull wrote:
Then
there are fun details like this one: ethanol is a nice harmless
cleaning fluid for many things, including most plastics. But it will
turn plexiglas matte.
And never use IPA to clean the focus screen in your SLR camera. I had
to have a Pentax dismantled and the screen replaced after that one.
I would go further. I would say, never use anything stronger than water
to clean any flat-panel display.
Glass ones are OK. But the focussing screen in an SLR (even a DSLR,
which is not what I was talking about) is not a flat-panel display :-)
It's an optical device, not an electronic one -- it's all done with
mirrors (and pentaprisms) :-)
--
Pete Peter Turnbull
Network Manager
University of York