10" Newt on a Giro 3?
Posted 09 February 2009 - 09:56 PM
Posted 09 February 2009 - 10:49 PM
My Giro 2 DX can handle 30 lbs on EACH side easily. I am using Losmandy G11 saddle and 13.5 inch dovetail plate. I believe the Giro 3 is rated for more. Correct?
Posted 10 February 2009 - 05:41 AM
I'm not absolutely sure that the G3 has a higher weight capacity than the G2? If your getting the results that you state, then it might be worth a try.
Posted 10 February 2009 - 07:12 AM
The GR-3 TV handles my 7" mak well. Vibrations are present at high power, but not bothersome. The duelspeed moonlite focuser helps.
I think the longer 10" reflector ota may be more susceptible to vibrations, but should function as long as it's properly balanced. I'd go with a heavier losmandy type saddle and dovetail bar for more stability, but personally would rather have the reflector on a dob mount which, imo, would be more stable, lower to the ground and easier to setup.
Good luck with putting it on a Giro, if you go that way. It would be interesting to see how it works out for you.
Posted 10 February 2009 - 07:21 AM
There are several CN reviews of the Giro 2 DX. This is the one that convinced me the Giro 2 can handle my 6 inch F8 AP refractor. ( OTA is ~5 ft long with dew shield and diagonal attached)
I seem to remember posting my Markus Ludes stating the Giro 3 DX is smoother and can handle more load the the Giro 2 DX. You could email him to verify that.
One thing I did was to invest extra for the Losmandy G 11 Saddle instead of the smaller saddle I have seen with many Giros. I can use a standard Losmandy plates and slide the long DUP back and forth to achieve perfect balance. I am using 7 inch Parallax Rings. The pair of Rings alone are quite hefty. I would not use a small saddle of flimsy mounting plates.
My OTA wt is ~30 lbs on one side. I ordered 2X 11.5 lb counter wts but found one counter wt is sufficient for smooth panning.
The old Giro XXL can hold an extremely heavy load( I think 203mm/F9 APO was mentioned) but cost was nearly $1K.
UA has a new Double Star mount. 40 lb on one side the 30 lb on the other. $599
Posted 10 February 2009 - 12:02 PM
Posted 10 February 2009 - 12:22 PM
Teton Telescope is another:
I am not sure I like the bright metallic red color on the Giro 3 for my scopes. A red knob on the saddle is OK but I don't have red OTA or Rings to match.....
Posted 10 February 2009 - 01:28 PM
Posted 11 February 2009 - 01:09 AM
Posted 11 February 2009 - 03:11 AM
The giro II is monted in a manfrotto 028 and is very stable, i put dsc in it ans is heaven.
At higher mag there is some vibration but nothing that bother me.
I think you will be satisfy with the giro 3, you have to put it on a good tripod like the Berlebach.
Posted 11 February 2009 - 12:24 PM
I own a Giro III from Teton Telescope. They come in black and silver, too (my bride told me unequivocally that red would not fit in the living room).
Seems there are conflicting info about the color(s) available. This is what I saw in the Tenton scope Giro page, para 4:
GR mount arms come with 2 M6 screws spaced 1 3/8"(about 35-36mm) on center, which is an industry standard and fits Takahashi, Borg, Intes, and other tube rings. The saddle plate of your choice can easily be adapted for use if hole spacing of this spec does not already exist on your saddle plate. The finish is all brushed or anodized alum in silver, black, red, and blue.
Currently all new GR3's are available in red only.
Perhaps a phone call is advisable if you are looking for something other than RED.
Posted 11 March 2009 - 11:16 PM
I just picked up a Giro II Deluxe on the other forum. I wanted to see how it compares with a Stellarvue M6.
Luis, where did you find the DSC for your mount?
Posted 14 March 2009 - 07:42 AM
Posted 14 March 2009 - 02:35 PM