The CTC 30x75 extendable telescope is a classicly designed one-element pull out model, with the option of attaching a digital camera to it via a range of adapters sold seperately.
It has a smooth pull-&
Specification:- Magnification: 30x
- Objective lens diameter (mm): 75
- Exit pupil, diameter (mm): 2.5
- Eye relief (mm): 16
- Field of view, real (m/1000 m): 41
- Field of view, real (degree): 2.35
- Field of view, apparent (degree): 66
- Shortest focusing distance (m): 10
- Diopter correction at 8 (dpt): > 5
- Twilight factor (DIN 58388): 47
- Objective filter thread - Length, approx. (mm): 310/490
- Weight approx. (g): 1200
Note: Does not include eyepiece (sold separately).