how is your Sigma 10-20 focus ring?
finaly got this in the mail the other day
havent run it through my battery of tests yet, but i noticed that the focusing ring, compared to both a Canon and a Nikon model (that i have used and operated), it produces a noticeable audible noise when turning, almost like its grinding through sand
however it FEELS smooth and there is no noticeable resistance to this.
how are YOUR copies? does the focusing ring make noise?
if my IQ tests come back positive, should i worry about this?
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