Canon to Nikon conversion ring

I just purchased a Canon Rebel XTI. I am very happy with the camera
so far. I was debating whether I should go with the Nikon D80 or the
Canon but the Canon won me over because I wasn't ready to make the
commitment financially for the Nikon. I also own a Nikon 8008s w/ an
auto focus lens and my father owns an F2 with roughly 5 lens (non
AF) My question is this: will I be able to use a Canon to Nikon
adapter ring successfully on my Rebel without loosing quality or will
I add more hassle than its worth. The rings that I have found are
moderately priced, roughly $20
http://cgi.ebay.com/Adapter-Adaptor-...QQcmdZViewItem
With the ring will the auto focus features work on the Canon cameras?
I would guess that the older lenses would work but I should need a
light meter to achieve the proper exposure instead of relying on the
TTL metering. Is there any compensation that needs to be made by
altering the distance from the optics to the CMOS? Any help would be
greatly appreciated. Thank you very much.

Sincerely,

Jesse Stein

stein.jesse@gmail.com wrote:
> I just purchased a Canon Rebel XTI. I am very happy with the camera
> so far. I was debating whether I should go with the Nikon D80 or the
> Canon but the Canon won me over because I wasn't ready to make the
> commitment financially for the Nikon. I also own a Nikon 8008s w/ an
> auto focus lens and my father owns an F2 with roughly 5 lens (non
> AF) My question is this: will I be able to use a Canon to Nikon
> adapter ring successfully on my Rebel without loosing quality or will
> I add more hassle than its worth. The rings that I have found are
> moderately priced, roughly $20
> http://cgi.ebay.com/Adapter-Adaptor-...QQcmdZViewItem
> With the ring will the auto focus features work on the Canon cameras?
> I would guess that the older lenses would work but I should need a
> light meter to achieve the proper exposure instead of relying on the
> TTL metering. Is there any compensation that needs to be made by
> altering the distance from the optics to the CMOS? Any help would be
> greatly appreciated. Thank you very much.
>
> Sincerely,
>
> Jesse Stein
>
You may find it a hassle to use an adapter like this. It will work, but
you'll lose most automatic functions of the camera. The adapter is
likely able to retain infinity focus at a quick glance, due to the fact
the F-mount is a smaller diameter than the EF mount. These adapters are
more useful if you have an exotic lens, like an ultra-telephoto.

<stein.jesse@gmail.com> wrote in message
news:1175542603.737519.281760@e65g2000hsc.googlegr oups.com...
>I just purchased a Canon Rebel XTI. I am very happy with the camera
> so far. I was debating whether I should go with the Nikon D80 or the
> Canon but the Canon won me over because I wasn't ready to make the
> commitment financially for the Nikon. I also own a Nikon 8008s w/ an
> auto focus lens and my father owns an F2 with roughly 5 lens (non
> AF) My question is this: will I be able to use a Canon to Nikon
> adapter ring successfully on my Rebel without loosing quality or will
> I add more hassle than its worth. The rings that I have found are
> moderately priced, roughly $20
> http://cgi.ebay.com/Adapter-Adaptor-...QQcmdZViewItem
> With the ring will the auto focus features work on the Canon cameras?
> I would guess that the older lenses would work but I should need a
> light meter to achieve the proper exposure instead of relying on the
> TTL metering. Is there any compensation that needs to be made by
> altering the distance from the optics to the CMOS? Any help would be
> greatly appreciated. Thank you very much.
>
> Sincerely,
>
> Jesse Stein
>

It is doable, but a mite impractical. You must focus manually of course - a
third-party matte screen such as a Katz' Eye is a great help in this. You do
not get any focus confirmation unless you buy an adapter with a bit of
electronics in it that let the camera know there is a lens mounted.

The big problem is that you must manually stop the lens down to the desired
aperture before shooting. This means, in effect, that it is only practical
to shoot with rather wide apertures if you are doing it handheld, then you
can preset the aperture, focus, then shoot. It small apertures it is simply
too dark to see what you are doing. If you want small apertures, it's tripod
time.

The good news is that the camera will meter properly. Only M and AV modes
are available though, as the camera has no control of the lens aperture.

I'd say that for most people it's an interesting option only for very long,
exotic lenses that would be prohibitively expensive to replace, and for
short, fast lenses where DOF is substantial even at wide apertures.