I have used my D30 successfully with a 1000/10 T-mount lens
at 1000mm and 2000mm (with a Pentax 5-element 2x).  Just
set the camera to "M",  set the aperture to that of your
lens (or lens + TC combo) and change the shutter speed until
the camera meters proper exposure.

As with any long lens,  focusing get more challenging with
increasing focal length.


> Has anyone used the D30 with 3rd party manual-focus 
> lenses, for example the Sigma 600/8 mirror lens or
> anything with M42/EOS-adapter or some such?
> Does it work? Any problems?

Lars
-- 
Lars Michael                           [EMAIL PROTECTED]
87GT                  http://www.citilink.com/~larry/gallery
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