----- Original Message ----- From: "Adam Maas" Subject: Re: Some observations on lens mount capability.
> The Nikon FA does the same thing with AI and Ai converted lenses in > Program and Shutter priority modes. AI lenses are functionaly > identical > to K/M lenses apart from their ability to mechnically communicate > maximum aperture (the FA is one of two bodies which takes full > advantage > of that to allow matrix metering). As far back as the mid 1970s, Nikon could probably have done a programmed AE camera with the technology they had available. The F2s with the AE adaptor would do shutter priority in around 1975, and the EL had aperture priority auto in 1972. Nikon cameras have always had aperture availability info to transmit to the meter. That was what the rabbit ears did when you mounted the lens and twisted the aperture to wide open than fully closed. William Robb -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
