APM Apo Astrograph 107/700mm - f/6,5 - with 3" Crayford-style focuser and 2.5" included flattener.

High-end colour-corrected 3-lens Apochromatic refractor for observing and astrophotography - fitted for big CCD cameras. Airspaced 3-lens system, with FPL 53 glass, certainly fully multicoated. The optical quality is close to the legendary LZOS optics.

Big fully corrected field of view due to large 3" focuser and the included 2.5" flattener.

Technical data:
- Airspaced 3-lens Apo, fully multycoated
- FPL 53 glass
- aperture: 107mm
- focal length: 700mm
- f/6.5
- tube weight without tube rings: 5.45kg
- weight tube rings: 0.65kg
- tube diameter: 114mm
- dew-shield diameter: 148mm
- observing length: 675mm
- transport length: 575mm
- backfocus: 180mm

Delivered by order:
- aluminium-tube
- movable dew-shield
- CNC made tube rings
- 3" crayford-style focuser with 11:1 reduction
- 2,5" flattener
- aluminium case