Description
- Multi-Coated Optics
- Maksutov-Cassegrain Optical Design
- Compact and Portable Design
- Erect Image System for Terrestrial and Astronomical Use
- Built-in T-Adapter threads for Ease of Adapting SLR Cameras
- Comes with 32 mm Eyepiece, 45° Erect Image Diagonal, and 8x21 Erect Image Finderscope
- Backpack Made of NylonThe Maksutov optical design is recognized for being a portable design that is easy to use and has a variety of applications, making it an excellent choice for both terrestrial and astronomical usage. This C90 Mak has excellent optics with razor-sharp images over a wide field.
| Magnification: | 39x (with included eyepiece) |
| Objective Lens Diameter: | 90mm (3.54") |
| Eyepieces: | 32mm Plössl (1.26") |
| Angular Field of View: | 1.3° with included eyepiece |
| Linear Field of View (@1000 yds) / @1000 m): | 68 ft (20.7 m) with included eyepiece |
| Focal Length: | 1250mm (49") |
| Exit Pupil: | 2.3mm (0.1") with included eyepiece |
| Eye Relief: | 20mm (.78") with included eyepiece |
| Close Focus: | 15 ft (4.6 m) with included eyepiece |
| Twilight Factor: | 59.2 with included eyepiece |
| Relative Brightness: | 5.3 with included eyepiece |
| Lens Coatings: | Multi-Coated |
| Prism Glass (Type): | BaK4 |
| Prism Coatings: | N/A |
| Weight: | 74 oz (2,100 g) |
| Environmental Protection: | Water-Resistant |
| Nitrogen Filled: | No |
| Tripod Adaptable: | Yes |
| Carrying Case: | Black heavy woven nylon backpack |
| Camera Adaptable: | Yes |
| Dimensions: | 400mm x 260mm x260mm (15.7" x 10.2" x 10.2") with include eyepiece |
| Included Items: | Plössl 32mm eyepiece | 45° diagonal | 8x21 finderscope | Objective Lens Cover | Eyepiece Lens cap | Backpack Case |
| Solar Warning |
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