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Cleaning inside lenses..

 
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_in_peace_



Joined: 21 Jul 2009
Posts: 152
Location: Sweden

Posted: Tue Oct 05, 2010 2:45 pm    Post subject: Cleaning inside lenses..
Hi!

I'm going to do a re setup and have seen a lot of dust inside the lenses.
Is it hard to get them together if i open them?

.. And why is only one marked with color? (blue dot)

Thank's

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Spanky Ham



Joined: 22 Mar 2006
Posts: 5643
Location: Comedy Central

Posted: Tue Oct 05, 2010 3:53 pm    Post subject:
ARe you talking about taking the whole lens apart or just the front element? The front element is usually pretty straight forward. Taking the whole lens apart is quite an ordeal.
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ecrabb
Forum Moderator


Joined: 13 Mar 2006
Posts: 15909
Location: Utah

TV/Projector: JVC RS40, Epson 5010
Posted: Tue Oct 05, 2010 4:25 pm    Post subject:
Spanky Ham wrote:
Taking the whole lens apart is quite an ordeal.

...And shouldn't be attempted without a clean room and the proper tools.

A little dust inside lens won't affect focus at all and will only have a very miniscule negative impact on contrast, so it's not really worth the risk of damaging a lens element or threads in the cleaning process.

Now, where'd you get those babies? I want to try a set so bad. Do you have a stock set to compare to?

SC
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Tom.W



Joined: 09 Mar 2006
Posts: 6635
Posted: Tue Oct 05, 2010 4:29 pm    Post subject:
Don't even think about tearing those lenses down ! Without a clean room you will end up with more dust then you started with and the elements have to be precisely spaced on an optical bench.
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_in_peace_



Joined: 21 Jul 2009
Posts: 152
Location: Sweden

Posted: Tue Oct 05, 2010 5:36 pm    Post subject:
Ohh thank's folks for the warning!

CS>> they was on the G70 when i bought it.. So i dont have any other set to compare them. But i really like them Very Happy
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