

P458/1900,LET2"-28,super PL10,8x50 finderscope,2" crayford dual-speed focuser,base: metal truss tube, shroud, F/ratio : F4
Newtonian Reflector
Aperture: 458 mm (18'')
Focal Length: 1900 mm (74.8 in)
Focal Ratio: f4
Central Obstruction: 120 mm, 26%
Light Gathering Power: 4266x
High quality/precision parabolic mirror
Low-expansion borosilicate glass for both primary mirror & secondary mirror
For visual observing up to 914x practical magnification (Lowest Useful magnification 65x)
0.25-arc second resolving power (Dawes) and 0.28 arc seconds resolving power (Rayleigh) & 16 stellar magnitude
Portable, quick-assemble truss structure
Fully Illuminated Field: 44 mm (1.7 in)
Optical Tube Length: 1940 mm (76.4 in)