Field model, day & night use
Posted 02 December 2012 - 09:41 AM
I am starting to explore the possibility of getting the Q 3.5" Field Model, and using it on an alt-azm mount. Have a couple questions.
First to anticipate a reasonable piece of advice that may be offered. Ihe Duplex version could be dual use., and further, with the mount's very functional and smooth manual slow-mo controls, I would have the "best of both worlds".
I have used a duplex from a local college a few times in the past. If I could save up that much money i would go that route. But, my main aim is the optics
I should also add that i have other scopes, been doing this for 5 decades, etc.
So with the preliminaries out of the way, my questions.
1. Have any of you used a Field Model on an Alt-Azm mount with slow-mo controls? your experience would be appreciated.
2. With a many alt-azm mounts (like my AT Voyager) one has to use an "L" bracket adaptor to mount an OTA via the tripod screw hole(s) if it has a built in back.
I have experimented with my ETX 90 OTA* in this manner. I have noticed that the front heavy nature of the the ota (with a healthy dewshield) sometimes challenges the mount's slow mo controls. Would this be a factor with the Q?
3. As an alternative, one can use rings mounted ahead of the control box (i know, that may block the finder on the Q, depending on the ring design), attached to the appropos dovetail. I have done this with my ETX 105 OTA*. But then the control box can result in the opposite balance problem, i.e., back heavy. Would this be a factor with the Q?
4. How much does the Q 3.5" OTA weigh? Could not spot that at the Questar site.
Any light you may shed on these matters would be nice.
*the ETX 90 was the old RA type. Ditched the mount after one night. The 105 was purchased used, OTA only. I do not find the ETX mounts to be amusing.
Posted 19 December 2012 - 02:13 PM
I use the field model much more at night than day.
Posted 20 December 2012 - 11:42 AM