150mm MCT f/13, 31% CO
"People say I'm in denial. I disagree."
Scopes: Celestron 9.25, Orion 80MM and 120MM EON Apo
Solar: Lunt LS60THa/PT/B1200/50DS
Binos: Canon 15X50 IS Mounts: CGEM and LXD75
Eyepieces: Explore Scientific, Meade & TeleVue
Camera: DMK 41, Canon 6D, SBIG STT-8300
Messier Certificate # 2508
My Images: http://www.astrophotogallery.org/u342-hfjacinto.html
So this cabbie says: "Know who I had in this cab last week? Bertrand Russell! Wisest man in the Western World. And I says to him 'Bertie, what's it all about?' And do you know, he couldn't tell me..." Kenneth Williams
"A telescope is either good or cheap, not both" - but sometimes you get lucky!
Quote:Hello again,OK, my big Mak arrived yesterday. After a long road trip, it presented in good nick. I did a quick daylight test and everything seemed grand. And guess what; the forecast was for clear and frigid skies! So I let the beast cool in my garden shed for a couple of hours and then, after work, set it up out in the cold night air and went observing with my 3" scope. About an hour in, the Mak had acclimated and I was able to do some preliminary star testing on second magnitude Polaris, in what turned out to be rather good seeing conditions (-6C) Collimation was spot on - which was nice - despite its long road trip south. The star test looked very good too; essentially identical patterns of evenly spaced diffraction rings inside and outside focus and with no signs of surface roughness. This is one well polished piece of glass!Then I had a go seeing how well it did on some doubles; Castor was simply blinding in this big scope and it resolved its two main components so easily, you could have driven a truck through the pair. Contrast was very good indeed. Better than I had expected frankly.On to Theta Aurigae; a decidely more difficult target and yet again, the tiny seventh magnitude spark was cleanly resolved at 216x. Impressive!Finally, on to elusive Propus (Eta Geminorum); 216x showed a painfully beautiful blue dot clearly separated from its bright orange primary by a sliver of dark sky. My smaller refractors showed the companion as greenish but now I really know it's blue! I tried to divine more magic from this instrument tonight but sadly, the seeing was *BLEEP*. What a difference a night makes. So, my first impressions of the 180mm F/15 Maksutov are very good indeed. This scope definitely appears to have the potential to do what I purposefully acquired it for; to resolve some trickier double stars on the finer nights that frequently evade my smaller scopes. More testing to do, but I'll keep you all posted. I attach some pics.Cheers,Neil.
Quote:Hi folks; right a few more pics.That's one big chunk of glass up front:
Quote:I need to stop researching and accept my destiny.
Quote:So the size of the opening into the back of the ota is 30 mm then the threaded size is 66mm. scope stuff attachment wont fit this scope, I tried......Dave.