I can help you there, it'd be the 155. I have imaged this with the 140 at F7.5 and yours is slightly larger image scale. The 130 with the STL11 would be a much smaller image scale.
Greg.
Quote:
Originally Posted by Peter Ward
Humm... To tell you the truth. I don't know which AP scope I used (130F6 or 155 F7) both have field flattners....the data is 2-3 years old and I only decided to process the data to see how Russ' software fared.
But, yes . boring old Omega is still there 
I suspect that is just a subtle processing artifact...i.e not real... sadly I couldn't find any flats for that data set... But it is in focus  |