SCA260 V2
Sharpstar
From $4,195.00
3 stores
The Sharpstar SCA260 V2 is a flat-field super Cassegrain astrograph featuring a 260mm aperture and 1300mm focal length with an f/5 focal ratio. This aspherical Cassegrain includes an integrated three-element air-spaced corrector that produces a large 80mm image circle. The carbon fiber tube keeps overall weight low and enhances thermal performance, while both primary and secondary mirrors feature enhanced aluminum coatings ensuring reflectivity of more than 95%. Its dual-speed Crayford focuser makes adjusting focus smooth and easy, making it ideal for dedicated astrophotographers capturing distant galaxies, nebulae, and star clusters.
OPT
Sharpstar SCA260 V2 Cassegrain Astrograph
Worldwide shipping
$4,195.00
High Point Scientific
SCA260 V2 Aspherical Cassegrain
Ships to US only
$4,615.00
Astronomy Plus
Sharpstar SCA260 Aspherical Cassegrain Astrograph - Version 2 (SCA260V2)
Worldwide shipping
CA$6,461.00
~$4,721.75
Specifications
| Cooling System | 3 integrated ventilation fans |
| Focal ratio | f/5 |
| Secondary Mirror Diameter | 120 mm |
| Weight | 14.5 lb |
| Visual Limiting Magnitude | 13.8 |
| 360° Rotator | ✓ |
| Aperture | 260 mm |
| Primary Mirror Material | PZ33 (Pyrex-like borosilicate glass) |
| Tube Outer Diameter | 304 in |
| Back Focus | 71 mm |
| Primary Mirror Type | Aspherical reflector |
| Tube Material | Carbon fiber |
| Focuser Travel | 50 mm |
| Corrector | 3-inch three-element air-spaced lens |
| Image Circle Diameter | 80 mm |
| Mirror Reflectivity | 95% |
| Focuser | 3.35 inch dual-speed Crayford |
| Focal length | 1300 mm |
| Secondary Mirror Type | Spherical reflector |
| Tube Length | 712 mm |
| Angular Resolution | 0.46″ |
| Field Flatness | Full-frame optimized |