Updated Whirlpool

Folks - I've still to get my vignetting fully sorted out and there's a bit of weird fringing going on (see right hand side) in the image below.

That said, I'm pleased with the level of detail the KAF1001E CCD can record in short exposures.

Dave



www.astroshack.net/gallery/galaxies/M51.php

Incredible detail Dave! :shock:
Strange sort of effect on the right side like you said. Was that in each image or just in the combined effort?

Fringing looks like the effect you get when mirror testing. I have had similar when light was entering the imaging train from outside. Still looks amazing though.

Was that in each image or just in the combined effort?

In each image I'm afraid. I'll have to try and track the cause down over the coming days. As Kieran says, it may be due to a light leak. I'll not worry about it for now though.

Cheers
Dave

Despite the fringeing (or Fraunhoffer lines), this is a Whirlpool image to be proud of. The amount of detail seen in even this black and white image is amazing.

Lovely image Dave, keep up the good work !!