Construction and Production: DI Hans-Heinrich Wenk
Main Mirror: DI Hans-Heinrich Wenk
Main Mirror
- Diameter: 350 mm
- Focal Length: 2030 mm
- Aperture (f/D): 5,8
- Coating: Hilux
- Optical Resolution (Rayleigh-Criterion): R/G/B: 0,47“ / 0,40“ / 0,32“
Secondary Mirror
- 82 mm / 10 mm (Hilux)
- Areal Obstruction: 5,49 %
Fork Mount (OPFM 500)
- Welded Steel Construction
- Max. Mirror Diameter: 500 mm
- Weight: 295 kgs
- Load Capacity: 160 kgs
Drives
- Friction Wheels, 500 mm
- Overall Transmission: 1500:1
2" Sled Focuser
- long travel path (150mm)
- precise linear bearings
- precise actuator
- positioning error < 0,01mm
- opto-electronical referencing
- ΔT-compensated focus-positions database
- permanent computer controlled compensation of ΔT-caused variations in length of the optical system
- focal instrument loading up to 8kg
- electrically heatable secondary mirror, with temperature sensor
- Fully computer controlled with additional handbox