Iiro's DeepSky Sketches

Primary mirror	457 mm
Focal length	2280 mm
Focal ratio	F5
Secondary mirror	117 x 83 mm
Focuser diameter	2" / 1.25"
Resolution	0.3"
Limiting magnitude	~17 mag
Length	2400 mm
Widht	650 mm
Mass	Heavy
Finderscope	8 x 50 mm + Telrad