Celestron C70 Mini Maksutov Cassegrain Spotting Scope
Celestron Mini Maks bring portability and versatility;the Maksutov optical design is recognized for being compact, easy to use, and applicable for both terrestrial (land) and astronomical use.
C70 Mini Mak is a small but powerful spotting scope that includes a tabletop tripod which has built-in slow motion controls, a built-in zoom eyepiece capable of 75x magnification, and soft carrying case.
Maksutov-Cassegrain Optical Design
The MAK is a catadioptric spotting scope, which means the optical design includes both a lens and a mirror. The light coming through a MAK passes through the corrector lens to the primary mirror and back to a spherical secondary mirror before it hits the eyepiece. Images are bright, sharp, and virtually free of chromatic aberration.
The Maksutov-Cassegrain’s optical design offers several unique benefits. Instead of a secondary mirror, the MAK features a “secondary spot” of reflective coating applied directly to the inside of the corrector plate. Because of this, the spotting scope does not require frequent collimation. Also, the secondary spot is significantly smaller, giving the MAK its signature high-contrast views.
One important thing to note about Maksutov-Cassegrain spotting scope is that the larger, heavier Maksutov corrector plate takes longer to cool down and adjust to ambient air temperature.
Additional Features:
- Maksutov-Cassegrain optical design with multi-coated optics
- 45° eyepiece - zooms up to 75x
- 1.25" eyepiece adapter allows usage of any 1.25" eyepiece
- Table top tripod
- Soft carrying case
- Limited Lifetime Warranty
Technical Specifications
| Magnification: |
25-75x |
| Objective Lens Diameter: |
70mm (2.75") |
| Eyepieces: |
25 - 75x zoom |
| Angular Field of View: |
1.3° - .7° with included eyepiece |
| Linear Field of View (@1000 yds) / @1000 m): |
66 - 35 ft (23 - 12 m) with included eyepiece |
| Focal Length: |
750mm (29.5") |
| Exit Pupil: |
2.8mm - .9mm (.2" - .03") with included eyepiece |
| Eye Relief: |
22mm (.87") @ 25x with included eyepiece |
| Close Focus: |
16 ft (4.8 m) @25x with included eyepiece |
| Twilight Factor: |
41.8 - 72.5 with included eyepiece |
| Relative Brightness: |
7.8 - 0.9 with included eyepiece |
| Lens Coatings: |
Multi-Coated |
| Prism Glass (Type): |
BaK4 |
| Prism Coatings: |
N/A |
| Weight: |
37 oz (1.043 g) |
| Environmental Protection: |
Water Resistant |
| Nitrogen Filled: |
No |
| Tripod Adaptable: |
Yes |
| Carrying Case: |
Black soft side woven nylon |
| Camera Adaptable: |
Yes |
| Dimensions: |
248mm x 89mm x 95mm (9.8" 3.5" x 3.8") without include eyepiece |
| Included Items: |
Objective Lens Cover
Eyepiece Lens cap
1.25" Eyepiece Adapter
Soft-side Case
Table-top Tripod |
In the Box
- Celestron C70 Mini Maksutov Cassegrain Spotting Scope
- Objective Lens Cover
- Eyepiece Lens cap
- 1.25" Eyepiece Adapter
- Soft-side Case
- Table-top Tripod
Warranty & Manuals
Limited Lifetime Warranty
