Finally after 13 months customs has my split tube 17.5 inch, perfect timing I just happen to be in the city on business for the next 2 days I will be able to...
Recently, for reasons I will explain, I rebuilt the Upper Tube Assembly on my Discovery Truss Dob. Because of a shift in focuser position (and a focuser...
Thanks for the post, Don. Tell me again why you're not working as a consultant to one of the high-end scope builders? -- Dave Read my latest astronomy column!...
1) There's not much profit in making scopes. You have to love doing it to do it at all. 2) I don't consult for free. I have many clients, but they pay me...
... PDHQ, ... I would guess with the PDHQs that the driving considerations for tube size were what sizes of sono tube were available that would accomodate the...
Many imagers have increasingly been building Newtonians. A new group has been formed for discussing the parameters involved in the designing, building, and...
... <leyrerwa@...> wrote: I received the 20" about three weeks ago and I'm still tweaking it while I wait on clearer skies. I'm really looking forward to this ...
Finally my 17.5 turned up after 13 months, all I had to do was go and pick it up from the dealer, it arrived right as I was moving 450 kilometres away down...
... Sounds frustrating. At least you know it's in your continent and that you have a good mirror. I too have a 17.5 pdhq and enjoy it immensely. Are dark skys...
Finally the telescope is sitting in the shed assembled, the covers I ordered did not arrive but every thing else is here. I did own a 16 f4.3 & a 10 f/6 solid...
Just upgraded from a 8" f/7 to a 12.5" f/6 split-tube Discovery dob. One thing I noticed right away was the orientation of the focuser. In my 8" dob, with the...
I am thinking of buying a 12.5 inch PDHQ. Is there a method of keeping the OTA balanced when changing from a heavy 2 inch EP to a higher magnification lighter...
For some reason, the market dictates that all mass-production and small scopes should have their focusers on the left side (scope pointed away from you). This...
On my 12.5" F5 split tube, the focuser is on the right side, too (as you're looking down the tube at the primary mirror). This had always puzzled me since all...
I'll offer one counter-argument, (but in actual use I really don't care, if the mirror is good, the movement smooth, I'm happy!) I really don't know which hand...
Thanks for the replies, I always wondered why the change from left to right. After one night it will probably seem normal... I wish I had of asked Discovery...
Hi Alan, In my original post, the offset I used was a vertical orientation, and the degrees were from the top of the scope (sorry about not making that clear)....
Discovery has moved in the last couple of years from a small Oceanside shop dedicated to making their own high quality line of custom scopes and optics, to...
Hello, As you mention in your post, I am/was one of the "Discovery Die- hards". Having owned a 10" PDHQ, a 15" PDHQ and now a recently received 20" PDHQ, I...
Terry Ostahowski is still providing mirrors for Discovery, AND for AstroSystems out of Colorado. So his mirrors are no longer Discovery exclusives. Don Pensack...
... AstroSystems out of Colorado. So his mirrors are no longer Discovery exclusives. Don Pensack AND --- to individuals --- http://www.ostahowskioptics.com/ ...
Dear Discovery dob users, I currently own a PDHQ 12.5 and I'm very pleased with it. Usual problem : In january I decided to order a truss 17.5. Bill then told...
Well after a 13 month wait, and three weeks before I could finally use the telescope, finally a night where I could get first light. Time to install the...
Hi there, I'm Drazen from Croatia and some of you may recall that I was a member of this group few years ago, as a owner of 10" PDHQ (probably the only one in...
If Discovery is indeed sliding into obscurity, it is really too bad. I bought a 14" f/4.5 PDHQ in 2000 while living in Phoenix. I stacked the Discovery...
Hi Drazen, We've just heard too many of these complaints to comfortably recommend patience. I'm not sure Discovery is as bad as that BBB report but they are...
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