Lens diameter: 140 mm
Focal length: 980 mm
Optical design: Fluorite apochromatic triplet
TEC 140 FL
Lunt LS 80 THa
Lens diameter: 80 mm
Focal length: 560 mm
Optical design: ED doublet (solar modification)
Celestron C11 HD
Lens diameter: 280 mm
Focal length: 2800 mm
Optical design: Schmidt-Cassegrain (catadioptric)
Pentax 75SDHF
Lens diameter: 75 mm
Focal length: 500 mm
Optical design: apochromatic astrograph
