ASTELE 133.5 mm Maksutov-Cassegrain OTA

Astele 133.5 OTA: Dove tail assy, soft case, diagonal mirror (1,25" fitting diameter), eyepiece (F=25 mm), 8x40 mm, 90° viewfinder with bracket. 

Astele 133.5 G: German equatorial mounting or tripod, soft case, diagonal mirror (1,25" fitting diameter), eyepiece (F=25 mm), 8x40 mm, 90° viewfinder with bracket. 

Astele 133.5 EL: Equatorial mounting (electronic control, wedge assy) or tripod, hard case, diagonal mirror (1,25" fitting diameter), eyepiece (F=25 mm), 8x40 mm, 90° viewfinder with bracket.

Specifications

Optical Design - Maksutov-Cassegrain;

 Optical Coatings - Multi-coated 

Optical Diameter - 133.5 mm; 

Focal Length - 1335 mm; 

F/Ratio - f/10Maximum 

Practical Visual Power:with the ocular F=25 mm - 53х; F=6.5 mm - 205х; F=4 mm - 339х

Limited Visual Magnitude (approx.) - 13.5; 

Viewfinder - 8x40 mm, 90°

Optical Tube Dimensions (diam. x length) - 164 mm x 440 mm

Eyepiece Holder - 1.25";

 Focusing range - 4 m … infinity

Resolving power - 0.9 arc secs; 

Weight - 5.3 kg (OTA); 14,95 kg (133,5 G); 21.0 kg (133.5 EL)