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First light, finally!

Started by fblue, 09/11/2005 10:07PM
Posted 09/11/2005 10:07PM Opening Post
Well, I got out last night under a bit of Moon and managed to get first light with the new 10". grin
I can state that the optics are absolutely stunning! Star tests are perfect. The contrast and detail is excellent.
With limited planetary objects we decided to use the Moon for a bit of testing of power and resolution. Again it was stunning up to 508x which is my highest power EP, 3mm Radian. Everyone commented that the detail and contrast on the Moon was breath taking, with details of peaks and small inner craters standing out in sharp relief.
DSO images were very good with some loss due to bright Moon light of course. We all wished it had been darker! 8)
The DSC with the 8192 tic encoders was right on the money. placing the object in the exact center of the FOV in a 10.2mm Pentax XL. I feel this is excellent myself and am quite pleased.
There was a bit of wind last night that complicated things a bit. There was some vibration in the scope, especially at higher powers of 300x and above. But this is pretty typical I think. I am looking into the vibration, but not sure there is a cure.
I am enclosing a picture of the scope in the middle of collimation. My friend Randy is at the Cat's Eye while I turn the screws. The Cat's Eye and Infinity Autocollimator are great to use.
This scope is being replaced by the way, with a new design from Astro Sky. James has decided that the design needed to change to better accommodate the light mirror and long focal length. So I will use this one until the new one arrives. Then I will change out the optics to the new frame. James has been very cooperative in this venture. We had some problems that were worked out so the scope functions quite well, but it was decided that the scope would work better for a f/5 to f/5.6 focal length than as a f/6. That is OK, as long as the manufacturer stands behind the product and makes everything right, that is all you can ask. smile

Attached Image:

fblue's attachment for post 26747

[SIZE="Large"][/SIZE][COLOR="Blue"][/COLOR] Floyd Blue grin
Amateur Imager
Posted 09/11/2005 10:33PM | Edited 09/11/2005 11:29PM #1
That's great Floyd. Using near perfect optics is truly a joy. I just rolled the roof off my building and I'm looking forward to a night with my 10" f-6 ZOC. The clear sky clock is showing good, followed by excellent seeing for tonight. What more could a guy ask for.
Paul
Posted 09/11/2005 11:16PM #2
Floyd,

It's a very clean looking scope. I like the black poles including the black on the cage - nice touch.

I made a run on the moon the other night. I recently switched my secondary from a 2.14 1/20th to a 2.6" quartz 1/22. Sweet optics. I had the moon at a little ove 300x and had the same feeling you did. It was like a huge photo. I dragged it out this morning as the sun was starting to come up for a quick preview of Mars - sweet!

The f6 is a bear on balance, especially since your mirror is fairly light, I would opt for a light tailgate and move the pivot point up as high as possible. This would minimize as much as possible the moment arm for the top, thus buffering the EP wieght swing issue from Orthos to the UWA's. When your moment arm ratio is like 4.5:1, small changes make it tough to keep the movment silky smooth.

Ed
Posted 09/11/2005 11:36PM #3
Congrats Floyd! ENJOY IT! 8)

Ivan Gastaldo 8)
Coconut Creek, FL

Ivan's Observatory
Lat 26N 16' 48" Long 80W 10' 48"
[COLOR="Red"]Personal Website:[/COLOR] http://www.ivangastaldo.com

CCD Imaging and Processing/Deep Sky - Moderator
I like to complain about everything - Moderator
Posted 09/12/2005 12:17AM #4
Hey Floyd,

Nice look'en scope! Super nice the optics are good too, that is such a relief eh? And look at the observing site your at? All those nice rolling hills and clear sky, dang I'm jealous!

Really happy for ya!
Ron
(PS, I played with the band tension and got the vibration out of that rear fan, thanks for the idea)

Posted 09/12/2005 01:46AM #5
Floyd,

I am very glad to hear that James is doing a redesign. I started to send you an email offlist suggesting that you and James collaborate on a new design. I've seen the excellent quality of your work and we all know you have a creative mind. I think with strong suggestions and guidance from you, both you and James will benefit.

Randy

Randy Roy
Posted 09/12/2005 03:41PM #6
Floyd,

My Astrosky scope is on order, as I mentioned. I'd be curious to chat with you by email about any problems you had so I can avoid them in my own scope.... drop me a line when you get a chance:
erik_hammarlund at yahoo dot com
Posted 09/19/2005 04:55AM #7
Pretty scope, Floyd!! Does it shake?