"Charles" wrote in message
...
On Tue, 30 Jan 2007 08:48:59 GMT, "Malcolm H"
wrote:


"Neil Ellwood" wrote in message
...
On Tue, 30 Jan 2007 07:32:40 +0000, Malcolm H wrote:

I have a Nikon D80 and have some questions re the Opteka 500mm mirror
lens.

1. Is this lens fully compatible with the Nikon d80 i.e. does it
provide
full metering with aperture priority so that only the focus needs to be
adjusted manually?

2. Any comments on the quality of this lens and its suitability for the
Nikon D80 would be gratefully received. It is widely advertised at
about
£60, is it a bargain or junk?

Malcolm


It is a mirror lens therefore it only has one aperture. I believe that
the
mount is a 'T' mount and they supply the relevant adaptor to fit to the
camera.

--
Neil
Reverse 'r' and 'a', delete 'l' for email.

I do appreciate that it has only one aperture (F8) but I need to know if
the
metering works so that the shutter speed can be set automatically in
aperture priority mode.



That's more of a question about the camera than it is the lens. What
does the camera do if you try to take a -picture with no lens
attached.

I use Canon, I don't know about Nikon, but the no-lens thing and a
T-Mount mirror appear the same to the camera.

Obviously you won't get an image, but see if you can get an exposure,
should be medium gray.


Yes, its the same for Nikon. Manual only. No metering. Manual focus.

f8 is actually better than f5.6, increased depth of field, much needed.