I'm not sure about scopes, but the best way to clean eyeglasses is with Dawn dish soap. Wet the lenses with warm water and apply a little Dawn to each surface. Spread with a finger. Rinse Dawn off your finger very very thorougly. When you think it is off rinse again. Dawn is very tenacious. Rinse lenses under running water while wiping with your finger. Again when you think the Dawn is gone, rinse some more. Wipe lenses with a clean cotton cloth.
Bob
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