Reflector telescope aperture 200 mm focal length 1 000 mm focal ratio 15 optical systems neo achromat reflector newton suitable for enthusiasts beginners max useful magnification 400 x tracking equatorial mount equatorial mount 5 eq5 tripod steel tripod telescope features astrophotography suitable barlow lens compatible astrophotography function digiscoping minimum useful magnification 28 coating fully coated series skywatcher explorer resoluti