Todd Frederick
Contributing Member
It's not What you use but How you use it.
Posts: 48
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Post by Todd Frederick on Oct 17, 2006 12:09:23 GMT -5
I am working on an Agfa Isolette I folder. My last step is cleaning the lens elements. In this case there is a light, but visible, haze/oxidation/fungus around the edges.
I never know what might remove these beasties. I have been advised to use facial cold cream, Windex, and other glass cleaners, but I think something a bit stronger might be in order.
I'm not concerned about removing the coating since there seems to be none.
Any thoughts on solvents that will handle this without etching the glass?
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Post by herron on Oct 17, 2006 12:17:42 GMT -5
I am working on an Agfa Isolette I folder. My last step is cleaning the lens elements. In this case there is a light, but visible, haze/oxidation/fungus around the edges. I never know what might remove these beasties. I have been advised to use facial cold cream, Windex, and other glass cleaners, but I think something a bit stronger might be in order. I'm not concerned about removing the coating since there seems to be none. Any thoughts on solvents that will handle this without etching the glass? Todd: I've always found a 50-50 solution of household ammonia and hydrogen peroxide melts the stuff right off. I finish cleaning with water. Have never run into any problem with coatings, or with marks on the glass. Good luck!  |
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Todd Frederick
Contributing Member
It's not What you use but How you use it.
Posts: 48
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Post by Todd Frederick on Oct 17, 2006 12:32:32 GMT -5
Herron,
Thank you. I will try that today and report back.
Todd
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Todd Frederick
Contributing Member
It's not What you use but How you use it.
Posts: 48
|
Post by Todd Frederick on Oct 17, 2006 16:12:25 GMT -5
The ammonia/Hydrogen Peroxide method works great!
The camera has a one lens rear element and a two lens front element. The rear element cleaned beautifully. Totally spotless. The front element also cleaned very well on the outside, but, it seems there must be an air space between the two lens elements, and there is a bit of haze inside (hope it not element separation!) and I need to determine how to remove the elements. At any rate, even if I can't do that, it is good enough to use. Thank you.
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SidW
Lifetime Member
Posts: 1,107
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Post by SidW on Oct 17, 2006 18:54:09 GMT -5
..... a 50-50 solution of household ammonia and hydrogen peroxide.... I believe it's still legal to buy this stuff, but be careful how you get it home. Certainly not on an aeroplane. Sidney |
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