15028HNT
Sharpstar
From $1,975.00
2 stores
Available soon
The Sharpstar 15028HNT is a 150mm f/2.8 hyperbolic Newtonian astrograph engineered for durable yet portable wide-field astrophotography. This compact reflector delivers a 44mm image circle that fills 36mmx44mm full-frame sensors with a 6-degree field of view. The hyperbolic primary mirror with enhanced aluminum coatings and a three-element corrector lens deliver reduced aberrations and sharp, flat images across the entire image circle. With a total weight of just 5.95kg (13.1 lbs), it is an ideal match for many medium-capacity equatorial mounts.
Specifications
| Aperture | 150 mm |
| Net Weight | 4.45 kg |
| Focuser Payload Capacity | 3 lb |
| Focal length | 420 mm |
| Focal ratio | f/2.8 |
| Corrector Type | Triplet (3-element air-spaced) |
| Telescope Type | Hyperbolic Newtonian Reflector |
| Focuser Type | 2.5 inch Dual-Speed Rack and Pinion |
| Image Circle | 44 mm |
| Primary Mirror Reflectivity | 97% |
| Back Focus | 55 mm |
| Field of View | 6° |
| Secondary Mirror Diameter | 70 mm |
| Focuser Thread | M48x0.75 |
| Primary Mirror Type | Hyperbolic |
| Tube Material | Carbon Fiber |
| Total Weight (with Accessories) | 5.95 kg |
| Primary Mirror Material | PZ33 (Pyrex-alike Glass) |
| Tube Length | 18 mm |
| Resolution | 0.77″ |
| Tube Outer Diameter | 195 in |
| Visual Limiting Magnitude | 12.7 |