[Dennis]

Hi

I used my Pentax *istDS last night for the first time on the C9.25 and grabbed 10 x 15 second exposures of M42 from suburban Brisbane. Here are the details:

Celestron C9.25 f10, unguided at Prime Focus (2350mm fl)
Pentax *istDS
10 exposures at 15 sec exposure each
800 ASA
Manual focus

Images aligned and combined in Images Plus. Final image of 3008 x 2008 was re-sampled down to 1024 x 684 and saved as a jpg with 30% compression.

If you look carefully you should be able to make out the 4 main stars of the Trapezium. I must say I was quite impressed with what the Pentax was able to pick up in the Mag 4 skies!

Cheers

Dennis