The Sky-Watcher BK 1021EQ3 is a high-performance 102 mm achromatic refractor telescope featuring a 1000 mm focal length (f/9.8). Equipped with a multi-coated objective lens and an adjustable objective lens cell, it delivers high-contrast images ideal for detailed, high-power planetary and lunar observation. Offering 28% more light gathering power than a 90 mm model and 112% more than a 70 mm optical tube, this setup comes mounted on a solid EQ3 equatorial mount upgraded with a heavy-duty stainless steel tripod for superior stability and dampening during high-magnification tracking.
(Solar Warning: Solar observation requires a dedicated, certified solar filter mounted securely on the front of the telescope. Never point the telescope directly at the Sun without an approved solar filter attached.)
【Key Features & Technical Highlights】
102mm Multi-Coated Optics: Features a 102 mm aperture with multi-coated achromatic optics for maximum light throughput and crisp imaging.
High-Power Planetary & Lunar Performance: 1000 mm focal length at f/9.8 minimizes chromatic aberration, making it ideal for planetary details and lunar craters.
2-Inch Rack-and-Pinion Focuser: Smooth 2-inch focuser with an included 1.25-inch adapter accepts both 2-inch and 1.25-inch eyepieces and accessories.
Adjustable Objective Cell & Dew Cap: Features an adjustable lens cell for colimation tuning and a dew cap/sunshade to prevent overnight lens condensation.
Upgraded Stainless Steel Tripod: Paired with the EQ3 equatorial mount, the upgraded stainless steel tripod offers increased rigidity and vibration dampening compared to standard aluminum legs.
Specifications
| Parameter | Details |
| Product Name | Sky-Watcher BK 1021EQ3 with Stainless Steel Tripod |
| Optical Design | Achromatic Refractor |
| Optical Diameter | 102 mm |
| Focal Length / Focal Ratio | 1000 mm / f/9.8 |
| Faintest Stellar Magnitude / Practical Power | Magnitude 12.7 / 204 x |
| Tube Material / Dimensions | Aluminum Tube / 10 cm x 94.3 cm |
| Tube Weight | 3.48 kg |
| Focuser Diameter | 2" Rack-and-Pinion Focuser with 1.25" Adapter |
| Diagonal / Finder Scope | 2" 90-deg Diagonal with 1.25" Adapter / 6x30 Finder Scope |
| Included Eyepieces | 1.25" Super 25 mm & Super 10 mm Eyepieces |
| Mount & Tripod | EQ3 Equatorial Mount with Stainless Steel Tripod |