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Old 01-11-2017, 11:45 AM
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strongmanmike (Michael)
Highest Observatory in Oz

strongmanmike is offline
 
Join Date: May 2006
Location: Canberra
Posts: 17,694
Quote:
Originally Posted by gregbradley View Post
It really boils down to aperture rules. The Newt for sure is faster. My Honders is undoubtedly faster than an FSQ. FSQ is plenty fast though Most widefield scenes are fairly bright to begin with. But the 694 sensor is only receiving a small part of the total illuminated circle the scope is capable of so to that degree the large sensor is receiving most of the light gathered by the FSQ whereas the 694 is missing large amounts of the gathered light.
Even so the 694 has higher QE especially in the narrowbands where its around 50% more sensitive.

Greg
Yeah, maybe Greg, maybe....

Quote:
Originally Posted by SimmoW View Post
Bloody big field that thing captures! And so crisp.

I notice some heavy Decon artefacts though










Just kidding.
Huh?...Idon't get it ...and you know very well that I have no sense of humour .......what's Decon?

Quote:
Originally Posted by Slawomir View Post
Thank you Mike and Greg for your explanations. I do not mean to change the topic of this thread, but I am curious about this. I feel the FSQ may not be as much slower than the Newton as we may first think, because of some light loss in mirrors and the central obstruction. But 9micron pixels are no doubt much more sensitive that 4.54micron pixels, so I feel your wide-field setup should be faster in getting high SNR.

As for the first light, Iam really impressed again and again how good the optical alignment is out of the box
Quote:
Originally Posted by Retrograde View Post
Stunning image Mike.
Congratulations on the new wide-field setup.
No problem at all Suavi and I think I could even agree with you and
Thanks Pete, wait till ya both see the LMC shot I am working on ...the Ha is simply mind blowing, highly detailed and perfect pin point stars corner to corner...this scope is bloody amazing, it has rekindled (or perhaps inflated?) my enthusiasm for this caper for sure

Quote:
Originally Posted by Regulus View Post
Well worth a look at the Hi-Res.
Nice colour, composition, and detail. Just a great photo.
Trev
Thnak you so much Trevor, see comments to Suavi and Pete re the next image

Thanks again all
Excited Mike
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