Table 2: Technical parameters of the FAVOR and TORTORA cameras.

FAVOR TORTORA

Main objective
 Diameter 150 mm lens 120 mm mirror
 Focal length 180 mm 150 mm
 Focal ratio 1/1.2 1/1.2
Image intensifier
 Photocathode S20 S20
 Diameter 90 mm 90 mm
 Gain 150 150
 Scaling factor 7.7 7.7
 Quantum efficiency 10% 10%
CCD
 Model VS-CTT285-2001 VS-CTT285-2001
 Frame size 1388 1036 1388 1036
 Pixel scale /pix /pix
 Exposure 0.13 s 0.13 s
 Pixel size 6.5  m 6.5  m
 Read-out noise 6 /pix 6 /pix
 Star FWHM

Mount Equatorial Alt-azimuthal
Focus manual automatic