how to clean internal lenses of the binos? (1 Viewer)

[rodrigator]

What is the best liquid product to clean internal lenses and why?
If you've ever tried to clean the internal lenses of a zoom binocular you'll know what I'm talking about.
Suggestions on the best option?
Currently, to clean the optics of fixed magnification binoculars, I use household liquid glass cleaner and it works perfectly, but I have not found a substance that does not leave residue on zoom systems.

 

[dipped]

What is the best liquid product to clean internal lenses and why?
If you've ever tried to clean the internal lenses of a zoom binocular you'll know what I'm talking about.
Suggestions on the best option?
Currently, to clean the optics of fixed magnification binoculars, I use household liquid glass cleaner and it works perfectly, but I have not found a substance that does not leave residue on zoom systems.

Not a liquid as such but Zeiss lens wipes don't leave a residue and get the lens in pristine condition. I have these and their anti fog wipes but the anti fog wipes leave a bit of residue.

 

[NDhunter]

If you are cleaning the internal lens surfaces, you must take the binocular apart. That is a large
task. That is for an expert.
Jerry