On 02/11/2010 08:05, Martin Brown wrote:
On 01/11/2010 13:41, pete wrote:
On Sun, 31 Oct 2010 20:03:32 +0000, Craven wrote:
My binocular lenses have a bit of grease on them. Anyone have any good
recommendations for cleaning lenses please? The lens cleaning cloth they
came with isn't very good.

Thanks a lot,

Craven.

Whip out hanky.
Find a clean patch
Breathe on lens
Wipe with clean hanky

I've been using this method for decades and have never had
a problem with it not working, or damaging the lens. Also
works on spectacles.

It is probably just about OK on spectacles.

That is somewhat unhelpful advice at least for astronomical optics.

Jessops sell lens cleaning tissue and isopropanol that is suitable for
cleaning grease off binocular and camera lenses. You want minimal
pressure and gentle radial linear strokes over the problem area. Try to
dry as much of the solvent off the surface with the edge of a second
tissue. Commercial cleaning solvents are seldom pure enough to survive a
spot test so you don't want to leave any big droplets on it.

There is another thread in rec.photo.digital that mentions a US product
for lens cleaning that is pure methanol - totally inappropriate for
normal use as it is far too aggressive against plastics.

Regards,
Martin Brown

Hey, thanks everyone. Will visit Jessops tomorrow.

Cheers,

Craven.