Advice needed on cleaning lenses

[jdg600]

Just noticed a large greasy mark on one objective lens of my binoculars . I have no idea how it got there but would appreciate any advice on how to safely remove it without damaging the lens coating.

Thanks,

John

[182570]

use any proprietary lens cleaner,you can get them from any opticians

[bullettooth]

this is a great vid

[jgs001]

Some form of rocket blower to make sure that there's not dirt/grit on the optics, then baader optical wonder fluid... not applied to the optics, but to the micro fibre cloth

[runoffshed]

I use Baader Planetarium Optical Wonder and can highly recommend it. I have used it on many pairs of binos - some old, some newer, some cheap and some high end and have never damaged any of the coatings on the lenses/prisms etc...

I have also used it (once) on a Vixen 4 inch with excellent results. Just google it and you will find many suppliers.

Good luck

[jdg600]

Thanks for all the advice. The video was particularly instructive. I will try to get the necessary cleaning materials tomorrow and have a go.

John