Re: Aperture on FA 24mm f2 jumping between 2.0 and 2.5???!!!

[Alan Chan]

This is due to the loose manufacturing tolerance of Pentax cameras & lenses. 
My F*300/4.5 & FA100/2.8 with Z-1p do the same thing too. The good news is, 
the displayed valued in the viewfinder is only a shown value, and does not 
affect the metering or exposure accuracy.

Alan Chan
http://www.pbase.com/wlachan
recently my FA* 24mm is behaving strangely on my MZ-5N. At the largest 
aperture
(aperture priority mode) the body says f2.5 then jumps to f2.0, then back
again etc.
Anybody notice the same problem, maybe wear on the aperture coupler?
What could I do do get rid of this problem?
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