Hi Drew, ... locks, ... This is another of my concerns as well. Robofocus is an absolute essential for you, me and I imagine a good number of other potential...
Hi, I haven't done Hyperstar imaging on the HD series, but my understanding is that there is no advantage to Hyper/fastar on the HD over the standard SCT OTAs....
Yes, I think that makes sense. I'm pretty sure the 5.25" sweet spot is F/10 but I haven't checked or asked. It isn't hard to add up the backfocus of all...
I see. So basically you are saying that although one can get to focus at other distances (by moving the mirror and changing the FL of the scope) you basically...
Hi all, This is an interesting thread, I've been eyeing the C11HD with a good deal of astrolust for several weeks now.... If I understand correctly, the sweet...
In order to get optimal performance for astrophotography on the Edge HD series you want the in-focus position to be at a specific distance back from the OTA....
How do you focus? Automated? Wouldn't automated/FocusMax get you right to the proper position? (One reason I asked earlier about the threading on the C11...
Thanks again Drew. I should add that I recently determined that my backfocus for the HD11 images was out of position from the "sweet spot" by about 0.4", so...
All the rest of you should go look at those images and analyze the FITS if you haven't. This is really amazing performance. Note when you analyze these and...
Great article Cliff! Thanks for posting it. I was wondering just the other day what the outcome of all that data they collected was. Jim On Nov 13, 2009, at...
Thanks. Those images look very very good. As I look at the images without the reducer they have perfect stars to the corner of the chip with the KAI-2020 chip...
I posted here a while back with images that I took as a beta tester for the Edge HD -- not sure if that is "end user" enough or not. I have them up on my...
Are there any end-user images taken with the Celestron EdgeHD out there yet (as opposed to images on the Celestron website)? Does anyone have FITS of images...
... If you mean detaching the dec saddle plates from the tube to remove the dec hubs, then yes, this will affect pointing since it can change the angle between...
... Right, if you only take it apart into the same parts that it's shipped as. ... That affects the angle between the optical axis and the dec axis. But on...
Hi Kurt, The image starts out as pure luminance – black and white. My SXV-H9 is a monochrome camera. I've tried to colorize my H-a images with Maxim DL 2.88...
thanks for this post. can you say just a bit more about the false color? I assume you do more than just feed this channel into an RGB composite and leave the...
Regarding setup of the Meade 16, Lifting the OTA onto the forks is not a problem. I either use a helper or roll it up a set of lightweight aluminum ramps. What...
... If I remember correctly, the 16", is different from the smaller models, in that it retains the orthogonality when removed. On the smaller scopes, the...
Sorry, I sent the wrong commentary. I was sleepy when I did the cut and paste. ***** Condition was again excellent this evening. Lots of things going on in...
Condition was excellent this evening. Oval BA's annulus ring is well resolved. It is very faint now but you can still see the orange ring. It is interesting...
Our skies are filled with nebulae. The nebulae of interest in this tutorial are huge regions of gas – gas clouds. The nebulae I'll discuss here are called...
Hello Bob: Ted Agos presented me with the option of adapting a cradle-mount for my spare 10" LX200 mount. This allows me to use various OTA's with the same...
On Wed, 11 Nov 2009 05:15:45 -0800 (PST) ... I've taken the 16" OTA off the forks at the observatory a couple of times now. While a re-alignment was needed...
I know some of you have removed Meade OTAs from their go-to fork mounts. Has anyone ever replaced them on the fork mounts, or repeatedly taken them in an out?...
Condition was excellent this evening. Oval BA's annulus ring is well resolved. It is very faint now but you can still see the orange ring. It is interesting...
This is common, usually just a result of mirror flop. Usually it's not a big change so it can be ignored for deep-sky observing, but if you're viewing planets...
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