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Product Highlights
The compact and highly portable C90 Mak Spotting Scope from Celestron is a powerful spotting scope with a Maksutov-Cassegrain optical path, a 32mm eyepiece, and an erect-image 45° diagonal that also corrects the view laterally. Because the finderscope and the diagonal both provide corrected images, the C90 is an excellent choice for terrestrial as well as astronomy viewing.
The 32mm Plossl eyepiece provides the user with a remarkable 39x magnification. Higher levels of magnification and wider fields of view can be experienced by substituting the included eyepiece with an appropriate 1.25" astronomy ocular.
The C90 comes with an erect image 8x21 finderscope that provides a wider field of view to aid the viewer in locating subjects and targets easily. The finderscope mounts conveniently to the side of the C90's optical tube assembly and removes easily for storage and transport.
The entire system is tripod adaptable—the C90 is equipped with a standard threaded tripod mount that's stable and secure. The rear of the C90 features built-in T-mount threads for mounting an SLR camera, using a user-supplied camera-specific T-ring, for astrophotography or digiscoping applications.
Specifications
Optical Design
Maksutov-Cassegrain
90 mm (3.54 in)
1250 mm (49 in)
14
0 or 45 °
32 mm (1.26 in)
39 x
8x21
Backpack made of nylon
213 x
13 x
12.3
1.55 arc seconds
1.29 arc seconds
165 x
1.3 °
68 ft (21 m)
23 m (75 ft)
20 mm (0.79 in)
15 ft (4.57 m)
Multi-Coated
16 in (406 mm)
5 lbs (2.27 kg)
Optional T-Adapter
Yes