- Astrotrac 360 tracking platform – first impression
- FIELD TEST: CARL ZEISS APOCHROMATIC & SHARPEST (CZAS) BINOVIEWER
- Omegon 32mm 70º SWA eyepiece review
- Review of iPolar hardware and software for polar alignment
- Review of the Hubble Optics 14 inch, f/4.6 Premium Ultra Light Dobsonian Tele...
- My experience with the Starizona Landing Pad
- A quick Review of the MIGHTY MAX 12V 100AH BATTERY
- Nexus II Review
- New Moon Telescopes 20”F/3.3 Review
- FIELD TEST OF THE BAADER MAXBRIGHT® II BINOVIEWER
- My Experience using SkyWatch for the Alphea All Sky Camera from Alcor Systems
- Astroart 7 - A Review and "How To" (Part 1)
- My experience using two 80-millimeter long-focus refractors
- GSO 8-inch TRUE CASSEGRAIN
- Celestron Regal 65ED M2
CNers have asked about a donation box for Cloudy Nights over the years, so here you go. Donation is not required by any means, so please enjoy your stay.
Mar 07 2006 04:46 AM | John Jarosz in Amateur Telescope Making (ATM)
I've been looking at helical focusers for a while now as I wanted to use one in the scope I'm designing. One that caught my eye is from a website in Canada. It seems the man behind this particular design is no longer making them or at least is on hiatus.
Jul 29 2005 09:12 AM | Guest in Amateur Telescope Making (ATM)
I went with a Kineoptics HC-2 focuser, which is a very light, precision focuser with zero image shift. I do intend to use a binoviewer with this scope and I know it's going to be a bit of a hassle with a helical focuser, but the much lower weight of the HC-2 was more important
Jul 28 2005 03:58 AM | sdskygazer in Amateur Telescope Making (ATM)
The prototype proved that a light-diffuser based ball telescope is feasible. But, is it scaleable to an 8 inch mirror, without the use of exotic materials? Checking with Mag-1, I notice that their 8 inch f6 uses a 16 inch ball.
Jul 26 2005 12:12 PM | Guest in Amateur Telescope Making (ATM)
The primary mirror refiguring was no different than a normal parabolic mirror, except that it had a hole in the center! The subdiameter lap that I made was made just large enough that it could be pressed
Jul 25 2005 02:44 AM | Guest in Amateur Telescope Making (ATM)
As a girl growing up in the fifties, I'd not even been permitted to take shop, and my woodworking skills were somewhere between rudimentary and nonexistant. I still missed a 6" Dob I'd sold because it was too big, though, and I'd always wanted to make a mirror.