Cleaning my Swaros (1 Viewer)

[Boogieshrew]

We have recently started keeping reverse osmosis water in the house for use in a fishtank.
Reading this has just made me think this would probably be ideal for optics cleaning.
It is very clean water.

 

[bungart]

WE have a full house RO system, the water out of the tap is very pure and all of my optics are waterproof.

 

[Chotacabras]

Definitely won´t use water if the Bino manufactures sell/produce cleaning products for lens maintenance. I suppose that the liquid given will be suitable for their coating formulas.
Water will leave a residue too and I will have to wipe the lenses anyway. Some areas tap water contains quite some lime.

My tapwater has a lot of lime, but I'm a firm believer in gentle water cleaning (if binoculars waterproof, of course). I take the eyecups off. I remove any grit on the lenses and body by blowing (with my mouth I mean) followed by running warm tapwater. I then use warm tapwater with a little bit of dishwasher liquid, and VERY GENTLY rub the lenses with small paintbrush (gentle rotating movements paying attention to edges). Then rinse, including eyecups and body (it's important to keep body and hinges clean too, especially if there has been salt-spray and/or a lot of sand). Then kitchen towel to dry the lenses (but ONLY PUSHING to blot the water, absolutely no rubbing or rotating); of course you're right, that water must be removed else there will be a residue. Then I leave them to dry. Some of this may be heretical, but I think it maintains the optics well. [Honestly, I hate the idea of using a cleaning fluid and a microfiber cloth... no way!]