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Message |
    
Impman71
Tinkerer
Username: Impman71
Post Number: 8
Registered: 03-2007
Rating: N/A
Votes: 0 (Vote!) | | Posted on Friday, April 25, 2008 - 08:32 am: | 
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Hi,
I have recently bought a Praktica MTL3 with a 35mm Yashinon lens.
It appears to have fungus or a haze on the back of the front element.
I have unscrewed the front piece of the lens(with filter thread) & I have removed the shiny ring enabling me to remove the front group of glass.
I cannot work out how to seperate the front element - it has slots for a "C" spanner, that I don't have - but it really is tight if this is the case, as I can get a reasonable grip on it.
Any ideas greatly appreciated,
Cheers,
Colin |
Scanogram
Tinkerer
Username: Scanogram
Post Number: 2
Registered: 04-2008
Rating: N/A
Votes: 0 (Vote!) | | Posted on Friday, April 25, 2008 - 09:37 am: |
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SOmetimes they put a dab of laquor at one spot on the threads of the round ring. If you have that, use a little acetone on a q-tip to get off. Watch out for plastic parts, the acetone will damage them, the older lenses were mostly metal so it shouldn't be a problem. |
Impman71
Tinkerer
Username: Impman71
Post Number: 10
Registered: 03-2007
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, April 30, 2008 - 10:44 am: |
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Thanks for that advice Scanogram.
I used some cheap nail varnish remover (with acetone in it) & it has done the job nicely.
I have managed to separate the elements (apart from the glued ones, obviously) & given them all a good clean. Just running a test film through now, to see how it performs.
Thanks again,
Colin |
Scanogram
Tinkerer
Username: Scanogram
Post Number: 3
Registered: 04-2008
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, May 01, 2008 - 10:43 am: |
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Good to hear it worked out. |
