Hi all, We had variable sky conditions on Thursday night here in Colorado but I definitely wanted to stay up late enough for Comet Holmes to clear the big tree...
I have an old (one of the first with a sono tube top and Z mirror 7) EL11 Starmasters. I decided to try and upgrade the focuser form the JMI DX2 that was on it...
Lou Humm, cought by the old focuser too high disaster. I did some quick research and if I am correct, your new focuser is 2.3" minimum, and I didn't see...
One other thing I forgot to address. My scope has a wall thickness of appox. 9/16" to 5/8" (tube material+focuser mount board) which should be very close to...
JMI may allow you to return the focuser if you describe your problem. Of course it must be in "like new condition". There may be a restocking fee, but you ...
... Yes. From my measurements my old focuser is about 1.7" minimum height and the new is about 2.3". There are a few other mounting issues that made it worse...
Inspired by Ginger's post, I yanked my 11" Shorty out back last night for another view of Comet Holmes. It was much, much larger than my last peek, though...
Bill, You may find that glasses are not needed at all at the telescope, unless you already know this to be false in your case. The telescope itself acts as a ...
Ray If you take a close look at the poles where the ball assembly is held in place by two very tiny screws. Holding the scope by the poles is requiring these...
Bill, I have pretty bad astigmatism and wear progressive bifocals. But I observe without my eyeglasses. I use a Nagler 12mm Type 2 and a Panoptic 22 mm with...
... be any problem except possibly at extremely low powers. I too ... from ... I've owned. The determining factor is exit pupil (aperture/magnification)....
Hi all, Well, the snow is flying here, and that means winter's coming fast with lots of long cold nights. I'm thinking of a fun project. I had the idea that I...
I have astigmatism and wear progressive bifocals. I leave my glasses on and don't have any problems getting proper focus with long eye relief eyepieces like...
Dear Doug, Other that what we've already discussed in the past, the one thing that's my pet peeve is the Az clutch. Getting down on my knees, and then getting...
I have some pics of Steve Carroll's (sp?) 14.5" that I got a few years ago from someone that owned it at the time (not Steve). It shows (at least somewhat)...
Servocat uses an external handle for the az clutch, but it's still down low, near the bottom of the side of the rockerbox. Installation instructions with some...
Doug, Let me suggest a different idea. You mention that you has thought of selling the scope because you live in northern Michigan with long cold winters, lots...
One of the members of our club has prepared an informative webpage on the growth of Holmes. he has calculated the dust is being ejected at an amazing 1100...
... have to peer through a finder.< I would second that motion. I'm a huge fan of using a laser in place of a finder scope or Telrad. I find a large part of...
Hi Bill, Well, I appreciate your thoughts. But I don't think a lot of this applies to me. The biggest problem I'm faced with here, winter or summer, is that ...
... I know Chris Peterson (of Cloudbait obs) from the SCT-user gorup, and coincidentally, we're both alumni of Caltech, and even lived in the same student...
Thanks, John. I have forwarded your info to Chris, if you haven't already. We'll see what he says. Al *********** REPLY SEPARATOR *********** ... I know Chris...
I already sent him a message on the SCT-user group, where I had done the earlier calculation myself. He points out on his site that the faint outer coma is...
Chris just replied on the other group. While he didn't miss the radius vs diameter issue, he did still manage to use a half angle as a whole angle at one...
Doug, Sorry, I misinterpreted your comments about long winters and short summers, and didn't pay enough attention to your remarks about tall trees as a factor....
This one is well worth the read. Trust me. Gene ... Read text message below as well as looking at the photos. And you also find out interesting things when...
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