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Optical Specifications| optical design | Maksutov-Cassegrain |
|---|---|
| aperture | 127 mm |
| effective focal length | 1540 mm |
| focal ratio | f/12.1 |
| central obstruction diameter | 39 mm |
| primary mirror coating | Aluminum with overcoat |
| meniscus lens coating | Anti-reflection multi-coatings on both sides of lens |
| eyepiece adapter | Accepts 1.25” accessories, camera T-threads |
| eyepiece | 25 mm Sirius Plössl, fully coated with multicoatings, 1.25” format |
| magnification with supplied eyepiece | 62x |
| actual field of view with supplied eyepiece | 0.77° |
| diagonal | 90° mirror star diagonal, 1.25” format |
| near focus with supplied eyepiece and diagonal | 27 feet |
| finder scope | 6x magnification, 26 mm aperture, correct-image, achromatic, 6.3° field |
| finder scope bracket | Dovetail mounting, spring-loaded X-Y alignment |
Mount and Tripod| optical tube mounting plate | Fits standard photo-style tripods and EQ-3 equatorial mount |
|---|---|
| mount | EQ-3, German-type equatorial |
| slow-motion controls | R.A. and Dec. axes |
| setting circles | R.A. scaled in 10 minute increments, Dec. scaled in 2° increments |
| counterweights | 4.0 lbs and 7.5 lbs |
| tripod | Adjustable-height aluminum legs, accessory tray included |
Weight and Case| weight | 36.6 lbs (tube 8.6 lbs, mount 28 lbs) |
|---|---|
| case | Deluxe carry case for optical tube included, padded case for EQ-3 mount optional |
| motor drives | Optional |
