"Nav" wrote in message
...


Overproof wrote:
"Nav" wrote in message
...

OK it will be clear enouch for both of you on the night of 23rd Jan but
you may have to snap it through a sucker hole. Just make sure you note
down the exact local time that you snap the picture. You should both use
a 3 minute exposure at about ISO1600 for your scope apertures to brinbg
up the star field. Perhaps our resident Professional Photographer with
the ~ 7" refractor (1000mm f5.6) would like to add to this advice?


You want me to take a photo of the comet with my Nikon for comparison??

Excellent... contact me on the 19 of Jan /05 with the reminder. I'll
give it a shot.


As I suspected, you lost some aperture there CM (1000mm fl at f5.6
requires a minimum 7" objective lens). Anyway, put it in your diary. What
mount will you use?

I've got 3... none with tracking ability for a 3 minute exposure though.
I'll have to borrow one from Dalhousie University....

CM