    
Garye
Tinkerer
Username: Garye
Post Number: 1
Registered: 08-2010
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, August 12, 2010 - 10:24 pm: | 
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Thanks to the posts to this forum I was able to disassemble and clean out the fungus in the rear element of this chrome nosed Canon 24mm 2.8f lens. As it was my luck, the fungus was on the inside of the last of 3 lenses nested inside the rear element assembly. None of these were glued but the lenses were screwed together in two groups. I reassembled the rear element and the lens seems to accurately manual focus and function as it should.
But in re-examining the glass where the cloudy fungus was cleaned there appears a fine white hair-line mark that has 2 short branches off it. The fungus was wiped off with a peroxide/lens cleaner mixture, but I did not soak the glass.
Is this lens glass etched by fungus or should I re-clean the glass by soaking it in the peroxide solution? The mark is so fine that it probably wouldn't detract from the picture or prevent me from using the lens. But I've read so much about fungus etching that I thought I should ask the question. |
