TS Optics Telescope N 254/1270 Photon OTA (68992)

This telescope is built for advanced users who need precise focusing and strong support for heavy imaging accessories. It features a 2-inch Crayford focuser with micro-reduction and robust ball bearings, ensuring smooth and accurate focusing even when handling equipment weighing more than 3 kg. The focuser’s positioning accuracy is less than 0.08 mm, which allows for exact focus, making it suitable for high-resolution sensors and demanding optical requirements. TS Optics is a brand of Teleskop-Service.

Specifications

Optics
Type: Reflector
Design: Newtonian
Aperture: 254 mm
Focal Length: 1270 mm
Aperture Ratio: f/5
Resolving Capacity: 0.54 arcseconds
Limiting Magnitude: 13.8
Light Gathering Power: 1320 times the human eye
Maximum Useful Magnification: 508x
Tube Length: 1150 mm
Tube Weight: 15.5 kg
Tube Diameter: 303 mm
Tube Material: Steel
Tube Construction: Full tube
Field: 28 mm

Reflector
Main Mirror Construction: Parabolic
Central Mirror Ventilation: Yes
Reflectivity: 94%
Primary Mirror Material: BK7
Protective Layer: Quartz
Aluminising: Aluminium
Secondary Mirror Diameter: 70 mm

Focuser
Type: Crayford
Eyepiece Connection: 2 inches
Gear Reduction: 1:10 fine focusing

Mount
Mount Included: No
GoTo Control: No
Type: OTA (Optical Tube Assembly)

Included Accessories
Finder Scope: 8x50
Tube Clamps: Yes
Eyepiece Adapter: 1.25" and 2"
Extension Tubes: Yes
Prism Rail: Vixen-Style

General Information
Series: Photon
Moon & Planets: Yes
Nebulae & Galaxies: Yes
Nature Observation: No
Astrophotography: Yes
Solar Observation: Not recommended (only with appropriate solar filter)
Recommended for Beginners: No
Recommended for Advanced Users: Yes
Suitable for Observatories: No