[Shiraz (Ray)]

Originally Posted by traveller

Very nice Ray, well composed and exposed!
Bo

thanks very much Bo. Glad you liked the composition - it was hard to get this collection of objects into a reasonably nice looking frame and I was a little uncertain of the result - appreciate your comment.

Originally Posted by lazjen

Very nice image. How dark are your skies?

How much disk space did you use with this? Including your flats, darks and intermediate files? I can see the need to buy hard disks on a frequent basis!

Also, it might be time to update your sig again?

Thanks very much Chris. Skies vary a bit, but I think they are generally around Vmag21/arcsec2. The total disk space needed to get to this image was ~37GB - only use flat and bias, since dark calibration isn't necessary with this camera.

Originally Posted by codemonkey

Great shot Ray, but I expect nothing less from you! :p

Hi Lee. thanks very much - this is a fun camera eh?

Originally Posted by Maurice

That's a lovely result...!
Great work.

regards
Maurice

PS How does the 1600 camera performs when binned....?

Appreciated Maurice - thanks. I haven't tried it with hardware binning, but understand that it is not the best. There is apparently an on-board bottleneck that limits the bit depth to 10 bits when hardware binned. However, there is a good case for software binning with such low read noise. For example, at gain 50, software binning would yield a 4mP sensor, 7.6 micron pixels, read noise of ~5eRMS, well depth of ~50,000 e and vanishingly small dark current - it would be a very competitive narrow field camera for a larger scope.