Scope arrived as promised. Five boxes packed tighter than Dick's hat ban. Think they could have thrown the boxes from California to Baton Rouge and they would...
Hi Terry, My paperwork came in a separate envelope when I got my 12.5" PDHQ last year, but everything else was in one of the boxes. Don't expect the ...
Hey Gang, Just wondering if anyone has any experience with the 20" Split Tube? I know I can/should go the truss route on a scope this size but I just adore the...
Thanks Mike. I'm fairly new at this as you could probably tell. Looks like the mirror clips stay in place. I thought they were for travel. First light came...
Hi Terry, You mention "the scope needs some work on both axis. Not very smooth." That is one area where I was able to make some significant improvement. First...
... I would never attempt such a scope as a ... Bill, Think through carefully how you would muscle both pieces of the tube into your vehicle and then fit them...
Patrick, was wondering what you meant when you said you had the "pick of the litter" when describing your mirror? I received my scope the same time as yours...
Chris, Thanks for all the thought you put into your reply. Actually, I;ve given this a tremendous amount of thought and I pretty I've cover all of the angles...
1) Why a sonotube scope instead of a truss? The extra height of the full- tubed scope's rocker box, coupled with the extra weight of a 20", will introduce a...
Oh man....I feel kinda bad now! :-) For an extra fee, Discovery picks out the best mirror from the current batch and gives you a printout from the tests....
Hi all, Thanks for all the previous responses on the Fan installation for my new scope. I'm getting ready to install the fan this week. Overall, I am very...
Hi Paul, I understand what you're saying and agree to a point. My guess is that most buyers of Discovery scopes are not first time scope buyers who are...
Take a stroll through the Photos section of this Group and you'll get several good ideas! I have a pic of the stiffener panel I added to my 12.5" in my folder...
Wasn't aware of the mirror "pick" when I ordered the scope. Talked to Bill this morning and he explained how that works. Being new at this hobby I didn't...
Ok, Ive been meaning to post these pics anyway, this is a good occaision. The first pic is of the rocker box stiffener. I cant take credit for this one, when I...
In a message dated 2/7/2006 7:19:35 A.M. Pacific Standard Time, patjoja@... writes: Paul Maag I agree with what you said about Discovery and can add...
Thanks for posting the pictures Charles! I like the curved cutout idea and adding the foam bumper pad. I've been thinking about adding some kind of corner...
... Patrick, take a look at the 17.5 pdhq folder in the photos section. I did a similar mod to what was done with Charles' scope. I did add corner braces up...
... My non-split tube, 12.5" PDHQ has four long armed right angle steel shelving braces used as stiffeners. They join the azimuth support sides of the rocker...
Hi Chris, I did a search on the net per your suggestion and saw this Dob with a rather unique configuration: http://www.atmob.org/Articles/BuildingADob.html ...
Okay, more research and more good information. This guy says to thicken the bottom board in the rocker box because that is where most of the flexure happens....
In a message dated 2/9/2006 2:09:58 A.M. Pacific Standard Time, evanikoff@... writes: SLava If you check the price of the 15" or 16" Discovery split...
People, What about using a 40mm eyepiece on one of these F/4.5 scopes? I saw on the FAQ that several eyepieces were recommended, from 30mm on downwards. Why...
If the eyepiece produces too large an exit pupil, i.e.larger than the pupil of the observer, the eye will actually be stopping down the scope, which will...
Don, Thank you for the advice. I am getting to be an old #@%&!!'s, too, so donīt worry. Dean ... the pupil ... which ... with an exit ... to 31. ... booming. ...
Don gave a very good answer. But remember that each individual's eyesight is different and there are always exceptions to every rule! So with that in mind try...
Dean, If you have more than a 7mm exit pupil in a reflector, you will see a dark circle in your field of view. This is from the secondary mirror. I haven't...
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