Henessy said:Err, what I mean is that if there are white or black spots in the inner elements of the lens, how do I know whether it is dust or fungus? Hope this will make my question clearer.
Cheers
Henessy said:Cos if I am not wrong, I remember someone mention that one may zoom in or zoom out to test whether it is dust or fungus. But I forgot the details, and could not find the old thread.
Hope you all may help me.
Thanks
Snoweagle said:I heard pple saying that for lenses with zooming extension and retraction can cause dusts to get into the lens?
smtan24 said:I heard of this also. It's possible as there no seals on the lens.