GSO Truss Newtonian 303mm F4
The GSO Truss Newtonian features a carbon fibre truss chassis with optics of BK7 glass. The mirror coatings have 94% reflectivity and a protective treatment to prevent tarnishing.
This truss design improves the rigidity of the OTA and is essentially expansion free. This helps maintain collimation and limits changes to focus due to changes in temperature. The open nature of the truss design also removes the chance of tube currents and helps to limit the build up of dew, due to improved air circulation.
With a F/4 ratio and the focal length of 1212mm you will be able to shoot faint deep sky objects with just a few minutes of exposure.
The focuser supplied is GSO's 2" Monorail with 1:10 micrometric reduction capable of supporting loads up to 2kg in weight. This is a fairly basic focuser and we recommend contacting us about alternative focuser options that are more in keeping with the performance that this telescope is capable of.
Specifications
| OTA Type |
Carbon Truss Tube |
| Primary Mirror |
Parabolic BK7 Glass |
| Primary Mirror Diameter |
303mm |
| Secondary Mirror Diameter |
88mm |
| Focal Length |
1212mm |
| Coating Reflectivity |
94% Dielectric Coated |
| Supplied Focuser |
2" Crayford with Microfocusing |
| Supplied Accessories |
50mm Finder and Bracket |
| Mounting |
Dual 3" Losmandy |
| Weight |
23kg |
| Warranty |
2 Years |
