View Single Post
  #6  
Old 12-10-2013, 09:43 AM
gregbradley's Avatar
gregbradley
Registered User

gregbradley is offline
 
Join Date: Feb 2006
Location: Sydney
Posts: 17,903
Quote:
Originally Posted by bert View Post
Fred's wrong, the 6303 is great for rgb galaxies. It is also great for nb.

I could not wait to be rid of an 8300 that I had for a while. Swap it out.

My 2c
I did check through quite few images last night of 6303 galaxy images and there were a lot that were very good. They seemed quite luminous and clear. I guess that is a reflection of the high QE.


Quote:
Originally Posted by Bassnut View Post
Yes, Im probably wrong there, I must say ive seen some excellent galaxy pics with it. I hardly do any LRGB actually, so im the wrong guy to comment on that.

The sensitivity at Ha is pretty amazing (going by results) and with 40min subs it goes very deep indeed on a 10". On a 17" it would be nuts. Youd be hard pressed to get close on any other front illuminated chip.

If you can swap for that price, do it, the 16803 will cover anything else.
The blooming I do get is easily fixed, but it is an extra processing step.

The only good thing ive heard about the 8300 is the price.
Thanks Fred. Blooming is the main issue. The Sony 694 chip is also 6mp and has the same QE in Ha (66%). But its a smaller chip, antiblooming.

Both would be good for different purposes. The 6303 for NB and the 694 if it works on a 17 inch (long focal length and small pixels don't work well) could be great.

Greg.
Reply With Quote