Evostar 102-1 (2" VERSION) 102mm (4") f/1000 Refractor
Telescope
Outstanding, high performance instrument manufactured to extremely high
standards of optical and mechanical precision for the very serious
amateur astronomer. The fully multi-coated optics and image quality are
simply exquisite. Supplied with the EQ3-2 Deluxe Equatorial Mount with
built-in polar alignment scope
| Standard
Specification: |
| Magnification
Range |
x36,
x50, x100, x200 |
| Objective
Lens Diameter |
102mm |
| Telescope
Focal Length |
1000mm
(f/9.8) |
| Eyepieces
Supplied (1.25") |
10mm
& 20mm Plossls |
| Eyepiece
Supplied (2"/50.8mm) |
28mm
Kellner |
| 2"/50.8mm
Star Diagonal with 1.25" adaptor |
| Direct
SLR Camera Connection |
| x2
Deluxe Barlow Lens (1.25" / With Camera Adaptor) |
| 6x30
Finderscope |
| Dual-Fit
1.25"/2" Focuser |
| Built-in
polar alignment scope |
| EQ3-2
Deluxe Equatorial Mount & Aluminium Tripod. |
| Fully
Multi-Coated optics |
|
Product Code: 359-2
build_table('etistore',array('he3592')); ?>
An optical telescope gathers and focuses light mainly from the visible part of the Electromagnetic spectrum (although some work in the infrared and ultraviolet). Optical telescopes increase the apparent angular size of distant objects, as well as their apparent brightness. Telescopes work by employing one or more curved optical elements - usually made from glass - lenses or mirrors - to gather light or other electromagnetic radiation and bring that light or radiation to a focus, where the image can be observed, photographed, studied, or sent to a computer. Optical telescopes are used for astronomy and in many non-astronomical instruments, including: theodolites (including transits), spotting scopes, monoculars, binoculars, camera lenses, and spyglasses. There are three main types:
The refracting telescope which uses solely an arrangement of lenses (excluding star diagonals).
The reflecting telescope which uses solely an arrangement of mirrors (excluding eyepieces).
The catadioptric telescope which uses a combination of mirrors and lenses, and usually have a glass corrector plate at the front.
Astronomical
Telescopes and Accessories