Digital BW, The Print

All manual focus lenses lack the electrical contacts to convey 
aperture information to the body. Pre-Ai glass even lacks the little 
horseshoe device to mechanically convey this info. Bodies without 
the Ai mechanical connection cannot read any manual focus lens 
either with or without Ai installed.

Greg

> Could you refer me to any documentation of the manual lens focus
> limitation (on the S!)?
> 
> Thanks
> 
> Bill
>