Quote Originally Posted by destroya View Post
I have a lens I've been looking at, on ebay and used via amazon. but this scares me for some reason. the lens is in good/great shape but the dreaded "there is dust inside the lens but it wont affect image quality."

thoughts on that comment? experiences?
Zooms especially tend to collect dust inside. All the zooming in and out, is like a big piston sucking in air and dust. Small amounts should not be a problem. If there are piles of silt in there, well then... See post # 21 in this thread for how bad a lens can get, and still give a decent image.

I have a zoom that was dropped and the front lens is chipped. There is light dust inside. There is no way I would ever be able to get someone to buy it. The images look like they came out of a pristine lens.

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