Hi,
Selling the GSO 2" Crayford Low Profile 2 Speed Focuser For 8" and 10" Newts and Dobs, With 1.25" Adapter. In very good condition.
Price: S$180
PM me if interested.
Thanks for looking and have a nice day.
WTS: GSO 2" Crayford Low Profile 2 Speed Focuser (SOLD)
-
weixing
- Super Moderator
- Posts: 4708
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- Favourite scope: Vixen R200SS & Celestron 6" F5 Achro Refractor
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WTS: GSO 2" Crayford Low Profile 2 Speed Focuser (SOLD)
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Last edited by weixing on Sat Aug 02, 2008 11:24 am, edited 2 times in total.
Yang Weixing
"The universe is composed mainly of hydrogen and ignorance."
"The universe is composed mainly of hydrogen and ignorance." 
-
weixing
- Super Moderator
- Posts: 4708
- Joined: Wed Oct 01, 2003 12:22 am
- Favourite scope: Vixen R200SS & Celestron 6" F5 Achro Refractor
- Location: (Tampines) Earth of Solar System in Orion Arm of Milky Way Galaxy in Local Group Galaxies Cluster
Hi,
- Base plate dimensions: 3.54" x 3.54" (90mm x 90mm)
- Hole Spacing (center-to-center along telescope tube/optical axis): 70mm
- Hole Spacing (center-to-center perpendicular to telescope tube; straight line measurement): 73mm
- Hole Spacing (center-to-center perpendicular to telescope tube; measured along curve of base plate): 74mm
Below are the height:
- Minimum focuser height (with 1.25" adapter) = 62mm
- Maximum focuser height (with 1.25" adapter) = 94mm
- Minimum focuser height (without 1.25" adapter) = 52mm
- Maximum focuser height (without 1.25" adapter) = 84mm
By the way, no screws are included and the original screws for the 2" Rack and Pinion focuser is too short... at least my Celestron 8" F5 Newtonian is.
Thanks for looking and have a nice day.
It should be able to fit on most Sky-Watcher/Orion/Celestron/GSO standard 2" Rack and Pinion focuser mounting hole. It fit my Celestron 8" Newtonian mounting hole. Below are the dimension:the mounting screw dimension between each other, hoping not to drill holes on my 10" OTA
- Base plate dimensions: 3.54" x 3.54" (90mm x 90mm)
- Hole Spacing (center-to-center along telescope tube/optical axis): 70mm
- Hole Spacing (center-to-center perpendicular to telescope tube; straight line measurement): 73mm
- Hole Spacing (center-to-center perpendicular to telescope tube; measured along curve of base plate): 74mm
If your default focuser is the standard 2" Rack and Pinion focuser, you'll need a extension tube to reach focus. My Celestron 8" F5 Newtonian require the extension tube to reach focus. Anyway, I got one Orion 2" extension tube and can let go at S$20 if you need it.the minimum and maximum height from base (with the 1.25 adapter in), I also worried it might not reach focus...
Below are the height:
- Minimum focuser height (with 1.25" adapter) = 62mm
- Maximum focuser height (with 1.25" adapter) = 94mm
- Minimum focuser height (without 1.25" adapter) = 52mm
- Maximum focuser height (without 1.25" adapter) = 84mm
By the way, no screws are included and the original screws for the 2" Rack and Pinion focuser is too short... at least my Celestron 8" F5 Newtonian is.
Thanks for looking and have a nice day.
Yang Weixing
"The universe is composed mainly of hydrogen and ignorance."
"The universe is composed mainly of hydrogen and ignorance." ![[smilie=sigh.gif]](./images/smilies/sigh.gif "sigh")