DH wrote:


I'd be very careful with IPA on good expensive multi level coatings, but
as an alternative, have you thought about Opticlean ? Look at 7 Day Shop
for it, it leaves a polymer film on the lens, then after it cured, you
peel it off along with all the crud. I used it on my scope EPs and my
Strathspeys OK.

Thanks for the info. I'd heard of the method, but couldn't recall the
name of the product. I'll give Opticlean a try.

Regards,

Marcus