Chuck Norcutt wrote:
snip>
>
> Sorry I can't give you much more help. I'm not concerned about buying
> one of these 500mm f5.6's since my primary intention is a bright
> spotting scope. If I also happen to get a usable 500mm lens so much the
> better.
>
> ps: The C-8 is definitely very slow to focus. I expect that the 500mm
> f5.6 will be as well. It has a focusing knob extending out the back of
> the mirror cell just like the C-8. The focusing knob causes the primary
> mirror to move back and forth on a threaded, hollow shaft. Not as quick
> as grabbing a focusing grip up front like most lenses.
>
> Chuck Norcutt
> Woburn, Massachusetts, USA
Chuck,
Thanks for the info. I'll be interested to hear your opinion of the
500 f5.6. I think Ron Crabtree's suggestion is interesting but for the
same price (~$3000) I could get a decent Zuiko 500mm mirror lens and a
second hand C-8. If I did that, I'd also be in the market for a new
Wife, so I think that will have to wait.
--
Mike Butler
Chief Mechanic / Engineer
Team FCAR
http://home.earthlink.net/~teamfcar/
Dublin, California
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