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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 |
Details on how to carefully unpack the telescope system and check for all parts.
Lists all components included with the telescope system for verification.
Step-by-step instructions for assembling the telescope and mount.
Guidance on initial setup, including balancing the telescope and aligning the finder scope.
Procedure for balancing the telescope on the equatorial mount for smooth movement.
Instructions for aligning the finder scope with the main telescope optics.
Detailed guide on setting up and aligning the equatorial mount for astronomical observation.
Procedure for aligning the mount's R.A. axis with the Earth's rotational axis for accurate tracking.
Description and use of the polar axis finder scope for precise alignment.
Practical steps for using the polar axis finder to achieve accurate polar alignment.
Comprehensive guide to astronomical observation techniques and environmental factors.
