P3D Matching Lenses

[Pixschack@xxxxxxx]

I've been using Pentax K-mount lenses on my synch'd Ricoh SLR's for several 
years now.  My preference has always been for single focal length lenses 
rather than zooms.  Mainly because you know exactly what f-stop you're using 
rather than having to deal with the varying f-stops of zoom lenses.  I like 
to figure my own exposures, the cameras are often wrong.  As far as matching 
the lenses is concerned I've experienced no problem with mismatched focal 
lengths.  I have however noticed some variance in the size of the aperture 
from one example to another, resulting in one chip always being a little 
lighter that the other.  When buying lenses I make sure to inspect the 
aperture blades at several different stops to make sure the opening looks 
exactly the same.

Presently I carry a pairs of 28mm (used most often) 40mm (the famous pancake 
lens), 50mm and 135mm.

Gary Schacker