After seeing Rolfs image of comet Lemmon, I just had to have a go.
While not as good, I'm happy with the result the comet is moving at quite a clip so 2.5 minutes at ISO 1600 was as long as I wanted to go.
The final image is a total of 22.5 minutes, and I finally got DSS to stack the comet and stars so there is no trailing.
8" f/4 astrograph,
orion mini guider, HEQ Pro 5 mount.
Unmodded canon 1100D baader coma corrector.
2.5 minute subs at iso1600, total 22.5 minuts, darks frames, flat frames applied.
Standard stack in
DSS, processed in
PS 7.
Cheers,
Justin.