Telescope D = 350 mm, F = 855 mm, f/2.5, 2w = 3.5 deg (54 mm) VT-07b
Lens objective D = 180 mm, F = 294 mm, f/1.6, 2w = 10 deg (52 mm) VT-52c
Lens objective D = 125 mm, F = 204 mm, f/1.6, 2w = 20 deg (71 mm) VT-53e
Lens objective D = 192 mm, F = 296 mm, f/1.57, 2w = 10 deg (52 mm) VT-78a
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