Hutech Eyepieces

Premium Japanese Hand-crafted Optics
 

Orthoscopic Eyepieces


These eyepieces are based on the classic Abbe Orthoscopic (3 + 1 element) design. The 3 cemented elements are hand-aligned by Japanese craftsmen. Fully multicoated lenses provide clean, high-contrast images suitable for optimum planetary and lunar viewing.
 

 


Technical Specifications

Focal length

Baffle
diameter

Eye Relief

Effective lens diameter

AFOV

4mm

2.65mm

3.35mm

3.5mm

42°

5mm

3.40mm

4.05mm

4.0mm

42°

6mm

4.20mm

4.91mm

5.0mm

42°

7mm

4.87mm

6.07mm

5.7mm

42°

9mm

6.30mm

7.61mm

7.3mm

42°

12.5mm

9.20mm

10.41mm

10.0mm

42°

18mm

12.50mm

15.21mm

15.0mm

42°

25mm

17.48mm

22.22mm

20.0mm

42°