ThaiExcite
88/41 Kanlapapruek Road, Bangkae, Bangkae, 10160, Bangkok, ประเทศไทย
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อีเมล์: info@thaiexcite.com
URL: http://www.thaiexcite.com/Sky-Watcher-BK1021EQ3-4-f-10-Refractor-on-EQ3-mount-with-steel-tripod.html
กล้องดูดาว Sky-Watcher BK1021EQ3 4" f/10 Refractor on EQ3 mount with steel tripod
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รายละเอียด
กล้องดูดาว Sky-Watcher BK1021EQ3 4" f/10 Refractor on EQ3 mount with steel tripod
- Diameter/Aperture: 102mm
- Focal Length: 1000mm
- Multi-coated achromatic objective lens
- Aluminum tube
- Dew cap/Sunshade
- Adjustable Objective lens Cell
- 6x30 finderscope for easy location of objects
- Smooth rack-and-pinion 2" focuser with a 1.25" adapter, accepting both 1.25" and 2" eyepieces
- 28% more light gathering power than 90mm, 112% more than 70mm
- Ideal for high-power study of the moon and planets
- Pre-assembled tripod for convenient and quick assembly
All Sky-Watcher refractors come with muliti-coated objective lens for maximum light transmillion. Refractor telescopes are excellent for Lunar and Planetary viewing as they offer very crisp and sharp images.
The Sky-Watcher BK1021 series uses two-element, air-spaced, multi-coated objective achromatic refractor tubes. They are truly outstanding, high-performance, high-resolution instruments manufactured to extremely high standards of optical and mechanical precision. With their long focal lenghs and breathtaking, diffraction limited optical performance, they are ideal for the detailed high-power study of the Moon, Planetary Surfaces and other objects in our solar system, giving crisp contrasty images. These telescope packages will stand you in great stead for a lifetime of serious astronomical viewing.
The heavy-duty EQ3 mount features 360-degree worm-gear tracking controls on both axes, large knob-style R.A. and Dec. lock bolts, dual metal setting circle dials, a latitude adjustment screw, and a built-in polar scope holder. It can be fitted with both single and double axis motor drive for auto-tracking.
In the Box:
- Telescope Tube
- EQ3 mount
- Steel Tripod
- Counterweights
- 6x30 Finderscope and Bracket
- 2x Slow motion control knobs
- 2" 90-degree Diagonal
- 2x 1.25"SP eyepieces (10mm, 25mm)
- Tools for assembly
- Manual
SPECIFICATIONS
| Optical Design | Achromatic Refractor |
| Optical Diameter | 102mm |
| Focal Length | 1000mm |
| F/Ratio | F/9.8 |
| Highest Practical Power | 204x |
| Faintest Steller Magnitude | 12.7 |
| Finder Scope | 6x30* |
| Focuser Diameter | 2" |
| Diagnol | 2" 90 deg. Diagonal with 1.25" adapter |
| Eyepieces | 1.25" Super 25mm and 10mm |
| Tube Weight | 3.48 Kgs |
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.