Question about Tamron 18-250mm F/3.5-6.3 AF Di-II LD Aspherical (IF) Macro Lens for Konica Minolta and Sony Alpha D...
Hi have recently purchased this lens from ebay second hand, and there appears to be sand or something inside.So i was wondering how easy it was to take it apart to blow this stuff out?.It is a pentax fit lens.
The front element is easy to remove.
There's a plastic cover on the front of the lens which has a very small hole in it.
Get something like a very small screwdriver in that hole and prize the cover off.
Remove the 3 screws in the next plastic cover and remove it.
The next 3 screws you see hold the front lens element on.
This whole part rotates to adjust the infinity focus and is kept in position by those 3 screws.
Make sure you mark the position by maybe making a small scratch in the plastic next to one of the screws.
Or maybe scratch around one of the screws.
With those 3 screws removed the front element with the lens just falls out.
Posted on Feb 06, 2013
Unless you just happen to have a lens collimator handy to ensure that you've got the elements in parallel, I wouldn't even consider taking the lens apart. And, I suspect, if you have a lens collimator you wouldn't have asked this question.
Leave this job to a professional with the tools to put the lens back together again.
Posted on Feb 05, 2010
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