> > > > > My take on this is that the 50-135 is the people 
> range and the 60-250 is
> > > > > the zoo range. ?(Actual wildlife would be the 200-500 
> Pentax has
> > > > > inexplicably failed to announce. :)
> > > > 
> > > > So a man photographing chimps in a zoo would need 
> 60-250, while the
> > > > zoo-resident chimp photographing people would need the 50-135.
> > > 
> > > Only if the chimp got to wander freely with the people.  
> Otherwise, the
> > > situation is symmetric.
> > 
> > Only if chimps are the same size as people.  Otherwise you 
> need a longer
> > focal length to fill the same portion of the frame with a 
> smaller body
> > (since the distance between subject and photographer 
> remains the same).
> 
> To a first approximation, chimps are the same size as people.
> 
> (Shorter, but longer arms and more likely to gesticulate broadly. :)
> 

You're thinking about Italians.

Bob


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