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| The INTES-71MN is a Maksutov-Newtonian
meniscus lens optical tube assembly designed for visual
observations as well as for astrophotography of deep sky
objects. The system is constructed for the highest
possible contrast, widest field of view and pinpoint
images. The telescope provides sharp planetary views and
bright images of nebulae, star clusters and galaxies. The
coated optics made out of high-grade optical glass
provide outstanding image quality. A meniscus lens placed
in front of the primary mirror eliminates chromatic
aberrations and other faults. Three options are available:
with Crayford, helical and low profile focusers providing
precise focusing and compatible with a wide range of
accessories. The high optical quality makes this
telescope ideal for the serious amateur astronomer on a
low budget. The basic telescope’s set includes: an optical tube assembly with a dew cap, 10x50 finderscope, a focuser, 4 dust covers for optical tube and finder, carrying handle. |
|
| Technical Specification | Value |
|---|---|
| Clear Aperature | 180 mm |
| Focal Length | 1080 mm |
| Focal Ratio | f/6 |
| Max. Magnification | 270x |
| Diameter of Secondary | ~ 36 mm |
| Central Obstruction | 20% |
| Tube Length | 1.200 mm |
| Tube Diameter | 205 mm |
| Dewcap Diameter | 205 mm |
| Dewcap Length | 200 mm |
| Primary Mirror | without central hole |
| Coating | Al+ SiO2 |
| Meniscuscorrector | BK7, fully multicoated |
| Focuser | 2" Low profilfocuser with 2" slighttube |
| Backfocus with 2" lowprofil-focuser | 60 nm |
| Linear field of view | 20 mm, not vigneted |
| Linear field of view | 36 mm, vigneted |
| Resolution | 0.008 mm in Center |
| Approximate tubeweight | 12kg |
Delivery: Finderscope 10x50 with quick exchange bracket, tuberings with mountplate a la MN61. Removable transporting grip fixed on the mounting rings. Cooling ventilator hole.
Последнее обновление: 07 Февраль 2001 г.
