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Old 09-02-2013, 12:33 PM
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gregbradley
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Join Date: Feb 2006
Location: Sydney
Posts: 18,183
Quote:
Originally Posted by tilbrook@rbe.ne View Post
Amazing how much you squeezed out of that 45 sec exposure Greg!

Nice framing too, whats your FOV?

Cheers,

Justin.
Yes I did squeeze a lot out of it didn't I?

The D800E is about the same sensitivity as my Proline 16803 albeit noisier as its not cooled. It would be tempting to have a modified version to pump it up even more but its too expensive for that.

Not sure how wide the FOV is. About 6 degrees?
I was happy to be able to get round stars at 180mm focal lenght with the little Polarie. Luckily the Nikkor 180mm is a fairly light lens. I really like this little Polarie.

I also have about 30 of these same images to stack so that will be another version. I also have a time lapse of it and a series with an 85mm F1.8 lens at F2. The comet was noticeably brighter last night - about 15% brighter and the tail is becoming more visible. Another few weeks and it could be quite bright.

Greg.
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