Well I've finally got to give in and do it. Got a small refractor that has spots on the lens. Some of it may be pollen from trees and flowers nearby. Any tips on how to gently clean a refractor objective? Thanks for any thoughts you can share!
cleaning refractor objective
Started by Larry Seguin, 08/25/2008 10:11PM
Posted 08/25/2008 10:11PM
Opening Post
Posted 08/25/2008 11:46PM
#1
Hi Larry,
I use lens tissues that Roland recommended, http://www.optoalignment.com/ow.htm with distilled water mainly, but if it is stubborn then I add just a little Alcohol to the water. But usually water is good enough. I bought the 2" x 4" 800 pack, they were very reasonable and will last for many years.
I blow the lens free of all the dust I can with a pump that is a high volume air mattress pump, this removes most of it. Then I will add a few drops of water to the folded tissue and let just the tissue glide over the lens one swipe and toss it and repeat until it is clean. If needed, the dry tissues can be used to lightly buff the lens after. They are non scratching type tissues that work very well.
I think the main thing is that all dust and sand grains be removed with air if possible, and then no pressure on the glass until it looks clean, then light pressure to buff if required only.
This is what I do and the lenses come out spotless, but maybe someone has a better way.
I use lens tissues that Roland recommended, http://www.optoalignment.com/ow.htm with distilled water mainly, but if it is stubborn then I add just a little Alcohol to the water. But usually water is good enough. I bought the 2" x 4" 800 pack, they were very reasonable and will last for many years.
I blow the lens free of all the dust I can with a pump that is a high volume air mattress pump, this removes most of it. Then I will add a few drops of water to the folded tissue and let just the tissue glide over the lens one swipe and toss it and repeat until it is clean. If needed, the dry tissues can be used to lightly buff the lens after. They are non scratching type tissues that work very well.
I think the main thing is that all dust and sand grains be removed with air if possible, and then no pressure on the glass until it looks clean, then light pressure to buff if required only.
This is what I do and the lenses come out spotless, but maybe someone has a better way.
[SIZE="Large"][/SIZE][COLOR="Blue"][/COLOR] Floyd Blue
Amateur Imager
Funding Member
