Telescope type: Prime focus

Telescope mount: Equatorial

Effective aperture: 85 cm

Focal length: 2987 mm (with corrector)

Focal ratio: f/3.5 (with corrector)

FOV: 32′×32′

Filters: Johnson UBVRI

CCD: Andor- DZ936N-#BV

• Number of pixels: 2048×2048
• Pixel size: 13.5um×13.5um
• Pixel scale: 0.93″
• Readout speed: up to 5 MHz
• Readout noise: 2.9 e_-
• Cooling temperature: -80 ℃

Fig. 11.  Filter response functions of 85cm reflector (broadband)