- Easy adjustment by turning the 2" receptacle
- 21 mm travel
- Flat base with four mounting screws for tubes with a flat support surface
- Four spacers for curved tubes with at least 230 mm tube diameter
- Reduction adapter from 2" to 1.25" included - the adapter does not add extra height.
Antares Low-Profile Helical Focuser for Newtonian telescopes
The short 2" focuser is ideally suited for self-construction of visually optimized telescopes. It is suitable for 1.25" and 2" accessories. Adjustment is made by turning the eyepiece. For the do-it-yourselfer who mainly wants to observe visually, the low profile Newtonian focuser has a few advantages:
- Extremely short construction - height only 20 mm for flat support surfaces or 26 mm for curved tubes
- Through the short length, the secondary mirror can be kept small, so no valuable aperture and contrast get lost
- Generous 21 mm travel
- The focuser is lightweight with only 280 grams
- Easy adjustment - done by simple rotating of the eyepiece. Due to the helical principle, focusing is more sensitive than with most rack and pinion or Crayford focusers.
The adaption to the telescope is very easy:
A special adapter or a base blate are not necessary. You only need an opening for the draw tube (diameter 67 mm) and the bores for the connection to the tube (distance 63.2 mm square). Tubes from 230 mm diameter can be used and an adaption to flat support surfaces is possible without any difficulty.
Technical Data:
- Minimum height: 20 mm (flat support surface) or 26 mm (curved support surface)
- Travel: 21 mm
- Eyepiece side connection: 2" and 1.25"
- Telescope side connection: four bores, distance 63.2 x 63.2 mm (diagonal 90.5 mm)
- Diameter for the opening of the tube: 67 mm
- Material: Aluminium
In The Box:
- Antares 2" Helical Focuser
- 4 spacers for curved tubes
- 4 mounting screws with washers and nuts
For further selection of telescopes, cameras, accessories, and more information to this product please visit us in our online shop at teleskop-express and enter the product no. ANFOCH2