Recommended for astro photography.
- Typology Apochromatic Refractor
- Diagram Optical Doublet ED
- Diameter 72 mm
- Focal length 420 mm
- Focal ratio f / 5.8
- Highest Practical Power 150x
- Anti-reflective treatment treatment
- 50.8 / 31.8 dual speed focuser
- Weight 1.9 kg