Archived from groups: rec.photo.digital,aus.photo (
More info?)
<papenfussDIESPAM@juneauDOTmeDOTvt.edu> wrote in message
news:d196tg$dr8$1@solaris.cc.vt.edu...
> In rec.photo.digital Jim <j.n@nospam.com> wrote:
> : That would be the AI-S version of the lens. However, before going out
to
> : spend money, be aware of the limitations of the D70 with respect to
non-AF
> : lenses. While it is correct that the electronic rangefinder works, the
D70
> : will not get exposure information. This can result in extreme
frustration.
>
> I've got a friend looking into a Nikon DSLR, so I'd done some research for
> him. Apparently one can convert just about *any* of the ancient Nikon
lenses to work,
> but unless it's AI it won't meter... do I have that correct? My question
is what are
> the technical reasons why it won't meter? I can understand that it may
not know the
> min/max aperture ranges on the lens without the right communication in the
mount. Is
> there some reason why stop-down metering can't be done? (like the Pentax
DSLRs with
> non-A lenses... )
Pre AI lenses which have not been converted (AI'd) can't be mounted without
doing serious damage to the camera, the lens, or both... As for exposure,
it looks to me like Nikon left out the electronics (from the D70) to perform
the task.
Most N series cameras can't do much with the pre-AI lenses either (for the
same reason). The F3 and the F4 can use stop down metering with these
lenses.
Jim