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Author
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Topic: B&H - Lens cleaning
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Manuel Tapia
Film Handler
Posts: 47
From: Monterrey, mexico
Registered: Aug 2012
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posted September 20, 2012 09:17 PM
With the premise that the lens is not working anymore, and pay to a specialist to clean would be more expensive that my whole projector, so I have 2 options clean it or buy it, I chose to clean by myself.
Tools
- Homemade lens wrench.
- Small screwdriver
- Lens Wipes
- 91% Isopropyl Alcohol, will be better 99% but I didn’t found it (Not use less that 91%)
- Cotton swabs
1.- First I removed the zoom screws
2.- Removed the back lens (the first one)
3.- I made I lens wrench using an old license plate cut with metal scissors
4 y 5 .- Removed the lens ring
6.- I removed the lens you can see how dirt was it
7.- I mark in the edge with a sharpe to know what was the internal side
8.- The zoom lens couldn’t remove is between the second lens base and the last one
9.- I try to remove the glue with the knife
10.- Then I try to release it, but I couldn’t, I read in the forum that could put a few drop of thinner or something like that to remove the glue, but should be careful to don’t touch the lens, so I thought that was too risky.
11.- So I decided to use an not elegant way ![[Big Grin]](biggrin.gif) , I introduce a cotton swab by the zoom slot and a drop of Isopropyl alcohol, and clean it carefully, of course was a perfect clean but I could remove all the dirt on it.
Here are a couple of before-after pics
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