austin man
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| posted on 22/2/11 at 11:28 PM |
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Lens cleaning
I know quites of few folk on here are multi talented and enjoy a spot of photography, question is have any of you stripped a lens to clean it ? I have
a 100 - 300 minolta lend which has a spec of muck on the inside which can be seen on full zoom. Has anyone stripped one of these.
It looks as though there is a ring on the front of the lens which needs a special removal tool. Does anyone on here repair lenses or have the tool for
removing the lens which I could borrow or point me toward a cheap one that I can buy
Life is like a bowl of fruit, funny how all the weird looking ones are left alone
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skodaman
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| posted on 23/2/11 at 04:04 AM |
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I'd be very wary of doing this with anything remotely modern eg. plastic and autofocus which presumeably yours is. Also I would guess the speck
of muck will make absolutely no noticeable difference to picture quality. I've managed to clean out and put back together my ancient 200mm
Nikkor a couple of times but that was necessary cos it got fungus growths inside the lens due to spending years in H. Kong and Philippines =hot and
humid. The long term answer to this was to keep lenses in sealed plastic bags in the fridge when not in use. Modern camera stuff is like modern cars
= great till something goes wrong.
Skodaman
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snapper
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| posted on 23/2/11 at 05:55 AM |
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Do do it.
The tolerance in a lens can be as small as half the wavelength of light.
If you can't see the dust on the photograph ignore it.
Some digi cameras have a dust off reference image that you store in the memory which the software can reefer to and will eliminate the dust spec on
the finished image.
I eat to survive
I drink to forget
I breath to pi55 my ex wife off (and now my ex partner)
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MikeRJ
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| posted on 23/2/11 at 10:32 AM |
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I've stripped and rebuilt quite a few SLR autofocus lenses, it's not that difficult to get them back together properly since you
don't usually have to touch any of the adjustable parts. The most difficult bit is getting them back together without including more dust than
you were trying to remove.
They often come apart in very non-obvious ways though, with numerous hidden screws and fixings.
[Edited on 23/2/11 by MikeRJ]
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02GF74
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| posted on 23/2/11 at 11:53 AM |
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... if you do attempt it, make sure you do it in a dust free environment, chance are you'll add more dust than you remove.
what is lens worth?- how much to pay perfeshnel to do it?
as ^^^ said, if you cannot see it in photo, then ignore it - you can always photo shop it out.
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David Jenkins
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| posted on 23/2/11 at 12:04 PM |
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quote:
Originally posted by snapper
Do do it.
Umm - shouldn't that be "DON'T do it"? 
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