SPECIFICATIONS
| #21048 |
Optical System: | Refractor |
Aperture: | 80mm (3.1") |
Focal Length: | 900mm |
F/ratio: | f/11 |
Focuser | Rack and Pinion |
Standard Oculars (or | 20mm 1¼" (45x) |
Eyepieces) | 4mm 1¼" (225x) |
| 3x Barlow |
Resolution | 1.7 arc seconds |
Light gathering Power | 131x unaided eye |
Limiting Magnitude | 12 |
Highest useful Power | 189x |
NOTE: Specifications are subject to change without notice.
OPTIONAL ACCESSORIES
You will find that additional accessories enhance your viewing pleasure and expand the usefulness of your telescope. For ease of reference, all the accessories are listed in alphabetical order.
Exotherm (#93504)- Perfect for chilly evenings outdoors camping, stargazing, or at sporting events, the Exotherm hand warmer is convenient, reusable and made from nontoxic materials. Heat lasts up to 1 hour.
Eyepieces - Like telescopes, eyepieces come in a variety of designs. Each design has its own advantages and disadvantages. For the
•OMNI Plössl - Plössl eyepieces have a
power observing. The Plössls offer razor sharp views across the entire field, even at the edges! In the
•
•Ultima - Ultima is our
•Axiom – As an extension of the Ultima line, a new wide angle series is offered – called the Axiom series. All units are seven element designs and feature a 70º extra wide field of view (except the 50mm). All are fully multicoated and contain all the features of the Ultimas.
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