Heavy Duty Altaz with Slow Motion controls
Posted 18 February 2009 - 01:50 PM
Posted 18 February 2009 - 02:11 PM
There are also additional mods possible that help with capacity and, of course, there is no substitute for a solid set of legs.
Posted 18 February 2009 - 02:48 PM
Posted 18 February 2009 - 08:27 PM
Slo mo control is not needed if the OTA is perfectly balanced. However, If you change back and forth often between a heavy binoviewer and light wt EP it may not be very convenient for you. You will need to rebalance. I use a Losmandy Saddle and 13.5 inch male dovetail plate with my 6 inch F8 refractor. It's pretty easy for me to achieve perfect balance. 300X is no problem.
Posted 18 February 2009 - 09:41 PM
Posted 18 February 2009 - 10:03 PM
Posted 18 February 2009 - 10:12 PM
How about a solid EQ mount (eg: EQ5 or Vixen SP) used in Alt-Az mode ?.
I like that idea a lot.
IIRC the old Astro Physics 706 head and the Vixen DX can be used on the side as an Alt az head with slo mo. The problem is no manufacturer or dealer seem list which EQ head can be used that way anymore. I am not sure if they want to discourage using a EQ head that way or just don't feel there is a demand.
I went to visit Company 7 in Md, USA many years ago. I think Marty was mounting an 7 in F9 AP refractor on a 706 mount in Alt Az mode.
Posted 19 February 2009 - 03:02 AM
The Track The Stars is a hefty alt-az mount with with goto controls, but possibly too pricey for a "poor PhD student".
I saw this mount at a star party half a year ago. It was a truly impressive piece of equipment, with a price tag which fully matched the engineering.
Posted 19 February 2009 - 08:16 AM
Posted 19 February 2009 - 09:24 AM
Posted 19 February 2009 - 10:29 AM
Posted 19 February 2009 - 11:05 AM
Posted 19 February 2009 - 04:28 PM
Posted 19 February 2009 - 05:06 PM
Posted 19 February 2009 - 07:58 PM
Posted 20 February 2009 - 02:23 AM
Stellarvue is making the M7, which will also hold the 130mm scope, but again, no slow motion controls and with the tripod and saddle plates, it's pretty close to the DM-6 in price.
Teton Telescopes also has the Max Load for alt-az, also expensive and no slo-mo controls, but like the Stellarvue offering, it really doesn't need them.
The Giro may be able to handle the 130mm, but I have no experience with anything that heavy on it.
The reality is that a good mount for a 130mm scope is going to cost quite a bit of money, and the GOOD mounts don't really need slow motion controls.
Posted 27 February 2009 - 09:27 AM
Stellarvue has a new mount just out, the MG. Not many out in the field yet. Starlighter has one on order I think. I believe they recommend it up to their 115mm and they tend to be conservative. It does have slo-mo.
Yeah, that looks like a good mounting.
Apparently, it's made by
Kunming United Optics and they offer lots of other quality accessories, so no worries.
Posted 27 February 2009 - 11:31 AM
I think the most cost effective solution is to wait for the new AT heavy duty Voyager, assuming Mike B can get either the mount head or tripod manufacturer to make an adapter so the two parts are compatable. I assume you saw Mike's post regarding his "silly, but a problem none the less" issue with the parts manufacturers' unwillingness to make adapters.
I wish I had the mega $$$ for a nice binoscope or the European alt-az.
Posted 27 February 2009 - 04:13 PM
Posted 27 February 2009 - 09:44 PM
Is there someone producing an aftermarket slow-mo control for the Giro???
Posted 28 February 2009 - 05:11 PM
Posted 03 March 2009 - 10:57 AM
Can't be the same mount, can it? According to the owner, Stellarvue is "waiting for gears" and will be "cranking out" its own mount. The Kunming is a turnkey, complete mount solution. There'd be no reason to wait for parts or crank anything out if it were simply a re-branded product.
Well, lo and behold, Vic has just stated that his shop is so busy, he's outsourced the whole MG/MGE project.
There ya go...