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88/41 Kanlapapruek Road, Bangkae, Bangkae, 10160, Bangkok, ประเทศไทย
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URL: http://www.thaiexcite.com/Sky-Watcher-BK1206EQ3-120mm-f-5-Refractor-on-EQ3-mount.html
กล้องดูดาว Sky-Watcher Startravel BK1206EQ3 120mm f/5 Refractor on EQ3 mount
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รายละเอียด
กล้องดูดาว Sky-Watcher Startravel BK1206EQ3 120mm f/5 Refractor on EQ3 mount
- Lens diameter: 120 mm / Focal length 600 mm
- Maximum recommended magnification: 240 x
- Magnification with included accessories: 24x – 60x
- Tripod height: 710-1230 mm
- Total weight: 8 kg / Tube weight: 4100 g
- The diameter of the eyepiece extractor: 2″ with reduction to 1.25″
- Includes: Telescope, mount, tripod, accessories
- Mount: EQ3-2 with the aluminium tripod
- Excellent light-gathering power
- Simple tracking by hand
The Sky-Watcher BK1206EQ3 is an achromatic refractor with a lens diameter of 120 mm and a focal length of 600 mm. The large aperture for a refractor and a relatively short focal length gives this telescope a very wide field of view. This makes it an excellent proposition for people who want to admire large open clusters, vast nebular objects or entire fragments of the Milky Way. The telescope with the EQ3-2 azimuth mount is a relatively small and portable, transport or storage will not cause any problems. This telescope is also a good option for novice nightsky observers. The large field of view with this telescope helps finding objects in the sky easy.
The set includes a Star Pointer finder and dovetail clamps for mounting the refractor on the mount. It works well for beginner observers, allowing for comfortable observations of the Moon, the Sun (using an appropriate sun filter) or planets. However, Sky-Watcher BK1206EQ3 is best for observing large star fields, entire fragments of the Milky Way. With the right eyepieces, it can provide a field of view comparable to wide-angle binoculars at a typically telescopic range. Due to this type of properties, the telescope can be used to observe comets, especially those with extensive plaits. It is very well suited for the visual observation of variable stars. With short focal length eyepieces, this telescope will also allow you to magnify objects such as the Moon and planets.
Optical system
The Sky-Watcher BK1206EQ3 has a classic, two-element achromatic refractor tube. A system of this type guarantees good brightness of the image obtained. The telescope collects about 290 times more light than the human eye at night, providing the ability to observe objects up to nearly 12.5 magnitude (with naked eye visibility up to magnitude 6). The size of the lens is also related to the optical resolution, which in this telescope enables it to separate stars that are more than 1.2 ”apart.
Installation
The telescope tube is mounted on a stable EQ3-2 equatorial mount. It is a relatively massive structure, sufficient for photographing the sky with telescopes up to 150mm in diameter, but at the same time light enough that such equipment can be considered quite mobile.
The assembly is equipped with precise micromovements. It is slao possible to upgrade the drive to a SynScan GoTo version. The EQ3-2 mount allows for the attachment of telescopes equipped with a Vixen Dovetail mounting rail.
The Sky-Watcher BK1206EQ3 is equipped with a 2 “Rack & Pinion eyepiece focuser. There is a standard Sky-Watcher finder attachment on the focuser.
In the Box:
- Telescope Tube
- EQ3 mount
- Aluminum Tripod
- Counterweights
- Red Dot Finder
- 2x Slow motion control knobs
- 1.25" 90-degree Diagonal
- 2x 1.25" eyepieces (10mm, 25mm)
- 2x Barlow lens
- Tools for assembly
- Manual
SPECIFICATIONS
Optics | |
| Type | Refractor |
| Type of build | Achromat |
| Aperture (mm) | 120 |
| Focal length (mm) | 600 |
| Aperture ratio (f/) | 5 |
| Resolving capacity | 0,96 |
| Limit value (mag) | 12,2 |
| Light gathering capacity | 290 |
| Max. useful magnification | 240 |
| Tube weight (kg) | 4,0 |
| Tube construction | Full tube |
Focuser | |
| Type of build | Gear rack |
| Connection ( to eyepiece) | 2 |
| Gear reduction | without |
Mount | |
| Mounting type | Equatorial |
| Type of build | EQ3-2 |
| GoTo control | no |
Tripod | |
| Type | Tripod |
| Max. tripod height (cm) | 121 |
| Min. tripod height (cm) | 71 |
| Canibelle | yes |
| Accessory plate | yes |
Included accessories | |
| 1.25” eyepieces | 25mm, 10mm |
| Eyepiece adaptor | 1,25″ – 2″ |
| Finder scope | Red dot finder |
| Dew Shield | yes |
| Prism rail | Vixen-Style |
| Tube clamps | yes |
| Deviating optics | Amici prism, 1.25″, 90° |
| Slow motion cable (piece) | 2 |
| Counterweight | Yes |
| Camera adaptor | T2 |
SUPPORT DOCUMENTS
Manuals:
EQ3 Mount: https://inter-static.skywatcher.com/upfiles/en_download_caty01316546576.pdf
About Sky-Watcher
Sky-Watcher was launched in 1999 featuring a modest line of Newtonian and refractor optical tubes, with distribution in Europe and Asia. In 2000, Sky-Watcher released their first series of Dobsonian telescopes, and two years later answered the rising popularity of digital SLRs with their first version of the famed German Equatorial Mount, the EQ6. Today, with a full product line that includes Dobsonians, APO refractors, EQ mounts, and photography products, Sky-Watcher has grown into the most popular telescope brand worldwide.