Mr. M.J. Lush wrote in message <63kugd$ljo$1@niobium.hgmp.mrc.ac.uk>...

> I'm playing round with making simple lenses
>for my Nikon FE10. I'm using a body cap with a hole cut in
>it as the lens mount. This has no conection to the AI linkage
>thing so it rests in most clockwise position
> What f-stop does the nikkon TTL meter think its set at?
>(so I can calculate a conversion factor and set the exposure
>manually).

F5.6, but the information is not needed so long as you are metering
with the lens at the same stop you will use for taking the picture...
(the meter is set up to meter any optic hung on the front regardless
of characteristic [except color! ;-], so just meter and shoot).
Hope This Helps
David Ruether - http://www.fcinet.com/ruether