Cleaning the camera lens

+1 on water on paper towel.

The "lens" may not be glass and/or may have anti-glare coating on it and some products may degrade the material or coating.

I used RainX on a camera and it seemed like the degradation of that lens was way too fast - maybe it was the RainX or maybe just the typical degradation that can happen, but I am not risking it anymore!
 
I think last time I used dish soap diluted in warm water on a paper towel. but only for the z4e's and the color4k 180.
 
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I prefer Zeiss lens wipes. Bought from Costco but have not seen them there for a while. If I suspect dirt or crud on the lenses then I first blast with air from a rubber bulb dust blower that I originally got for cleaning 35 mm slides.

My alternative is a lens/screen cleaner sprayed onto a micro fiber cloth. Do not use Kleenex or paper towels - they tend to scratch coatings.

As an aside - my preferred method for cleaning eye glasses is to spray them with hot water from my kitchen sink (removed large particles that may scratch), add a drop of (non abrasive) dish soap, rub with my fingers, rinse with more hot water, and then flick dry.
 
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Up until COVID came along I was using non-ammonia automotive glass cleaner by Turtle Wax or ArmorA ll....then it disappeared, at least in the spray bottle. I think ArmorAll has the wipes but not sure about the formulation. Says they are ammonia-free at Walmart.

I've been using Walmart brand ("Great Value"?) non-ammonia glass cleaner in a spray bottle ever since with good results for over 3 years now. It's in the household section. Great for TV screens, monitor screens and laptop screens or dirty laptop exteriors. Just spray on the clean cotton rag or paper towel first, not on the screen or laptop....drips can go down the front of the screen or keyboard where NO LIQUID should go.

Funny, it's not shown online but the Windex version is. Regardless of brand, insure there is no ammonia in it. :cool:
 
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One of the best cleaners for eye glasses I found was simple soap and water! All those expensive alcohol wipes and a soapy cloth followed by a rinse and wipe with a very soft tissue works wonders (note use a soft tissue as paper can scratch lenses, even tissues if not really soft).

It works so well, I even use it inside my car now for car glass. No need for fancy products.
 
Distilled water in a small spray bottle.
And a GOOD quality micro fiber towel.
That's exactly what i use, too, and a slightly damp micro fiber towel comes in equally handy on computer monitors and television screens.