EvoStar ED 100mm Doublet APO Refractor
Sky-Watcher
From $1,255.00
2 stores
The Sky-Watcher EvoStar ED 100mm Doublet APO Refractor is a high-performance apochromatic doublet refractor featuring a two-element air-spaced optical design with extra-low dispersion (ED) glass that virtually eliminates chromatic aberration for sharp, true-color imaging. With its 100mm aperture and 900mm focal length (f/9 focal ratio), this refractor excels at wide-field astronomical observation of nebulae, star clusters, and galaxies, as well as planetary and lunar observation and astrophotography. The lightweight aluminum tube construction with proprietary Metallic High-Transmission Coatings (MHTC) and internal light baffling delivers high-contrast, color-accurate views suitable for both visual astronomy and imaging applications.
Specifications
| Aperture | 100 mm |
| Focal length | 900 mm |
| Focal ratio | f/9 |
| Optical design | Doublet Apochromatic (ED) |
| Glass Elements | Schott BK-7 and FPL-53 ED |
| Focuser Type | Dual-speed 2-inch Crayford-style |
| Focuser Ratio | 10% |
| Tube Material | Aluminum |
| Finderscope | 8x50 right-angle |
| Diagonal | 2-inch dielectric |
| Eyepieces Included | 5mm and 25mm (1.25-inch) |
| Mount type | Vixen-style dovetail |
| Warranty | 2 |