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Cameras, Lenses and Accessories: Discuss dirt inside lens...Hi everyone, i have a lens with a spec of dirt inside it, im wondering if it can be cleaned ...
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Old 12-07-2009, 23:26   #1 (permalink)
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dirt inside lens

Hi everyone, i have a lens with a spec of dirt inside it, im wondering if it can be cleaned ? as the lens is only cheap ( nikon 70-300 1:4-5.6G will the cleaning be more than the lens is worth.
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Old 12-07-2009, 23:45   #2 (permalink)
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Re: dirt inside lens

Sometimes the only problem you may have with specks of dirt inside the lens is if you do a lot of against the light pictures sometimes these specs give off some strange patterns, If I were you I would not worry too much about it the dirt will have very little effect on your pictures. I dont know how expensive it would be to have your lens cleaned.
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Old 13-07-2009, 02:16   #3 (permalink)
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Re: dirt inside lens

Inside?... you risk a flight of springs over the shoulder, ball bearings tinkling onto the floor, and internal parts collapsing into a mangled heap with no reassembly instructions .... it also voids warranties....
Also, from experience, getting "watchmaker" type tools and screwdrivers that WONT mangle the heads of the screws into chocolate type mulch, is expensive, and difficult to find quality ones... I use some for fine PCB type work, they were VERY expensive, but have lasted well....

Yes there are places that can do the job for you...
No they are not cheap....
If they were, I would doubt the quality of their work?....

How much is the lens worth, whats the best quote you can get for repair, and whats the best price for a new or good quality second hand one.... weigh up your options, but I heartily do not recommend opening it up unless you are willing to assume its "For experience only", and can afford to scrap it afterwards....

Personally, I would line up a replacement, then go for it.... but... as I said, I have PCB assembly experience, so am used to opening tiny things under a X10 magnifier with a cloth over the top to catch springs.....
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Old 13-07-2009, 10:00   #4 (permalink)
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Re: dirt inside lens

I can't speak for Nikon as I'm a Canon man but I assume it is comparable. Any authorised Canon repair centre will take a lens, strip it and repair any issues all for a fixed fee. What you get back is basically a refurbished lens. They do the same for bodies as well. I have never inquired about lenses but to do a job on my 10D was going to cost around 150 as I recall.

Presumably in this competitive market Nikon repair centres will offer something similar. So give one a call and get a quote for 'repair' of the lens.

However, as stated above, unless it is causing you problems I wouldn't worry. I have a grain of sand trapped in the zoom mechanism on my Canon 28-135mm IS. Occasionally it jams the zoom mechanism but a quick twist in the other direction frees it up and on I go. Not worth getting a repair on, especially as it is an old lens and fairly well into the 'backup lens' category these days.
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Old 13-07-2009, 23:06   #5 (permalink)
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Re: dirt inside lens

Thanks guys I think it can stay where it is for now.
I will take some pics and go from there
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