FREE DELIVERY TODAY - 10% Discount for next 3 orders! Place your 1st order in.
Until the end of the sale:
00
days
00
hours
00
minutes
00
sec.
Hot DealsSALE
Soon stocks will run out
Dont miss this opportunity while supplies last.
Skywatcher AP 100/900 ED EvoStar DS Pro OTA + 0.85x Reducer/Corrector Specs
| Brand | Sky-Watcher |
| Full Model Code | Sky-Watcher EvoStar 100ED Doublet Apochromatic Refractor DS-Pro Astrograph Bundle with 0.85x Focal Reducer |
| Country of Origin | China (Manufactured) |
| Optical Design | Apochromatic Refractor (2-Element ED Doublet with Threaded Multi-Coated Focal Reducer / Field Flattener Unit) |
| Aperture | 100 mm (3.94 inches) |
| Focal Length | 765 mm (Effective Configuration with 0.85x Reducer System) |
| Focal Ratio | f/7.65 (Effective Configuration with 0.85x Reducer System) |
| Optical Coatings | Metallic High-Transmission Coating (MHC) paired with Multi-Coated Reducer Glass Elements |
| Glass Material | Ohara FPL-53 Extra-Low Dispersion Core Glass, Schott Mating Elements, and High-Index Flattener Lenses |
| Secondary Mirror Obstruction | 0 mm (Refractor Design with Clear Optical Path Layout) |
| Secondary Mirror Obstruction by Diameter | 0.00% |
| Secondary Mirror Obstruction by Area | 0.00% |
| Resolving Power | 1.16 Arcseconds (Dawes), 1.38 Arcseconds (Rayleigh) |
| Limiting Visual Magnitude | 12.5 |
| Highest Useful Magnification | 200x |
| Lowest Useful Magnification | 14x |
| Optical Tube Material | Roll-Formed Sheet Steel Optical Tube Cylinder Finished in Metallic Black Diamond Powder Coat |
| Focuser Style & Mechanism | 2-inch Dual-Speed Crayford Focuser Assembly featuring 10:1 Micro-Focus Reduction Gear Drive |
| Mirror Lock Mechanism | Not Applicable |
| Optical Tube Dimensions | 115 mm x 920 mm (Base barrel framework metrics) |
| Optical Tube Weight | 4.15 kg (9.15 lbs) (OTA outfitted with Reducer Hardware attachment) |
| Mount Attachment Type | Cast Aluminum Tube Rings bolted to a Standard Medium Vixen-Style Dovetail Bar Interfacing |
| Finder Scope Specification | 9x50 Optical Straight-Through Finder Scope Kit Complete with O-Ring Alignment Bracket |
| Included Accessories | 100mm ED Doublet OTA, Dedicated 0.85x Focal Reducer/Corrector, M48 Spacer Assembly, Tube Rings, Vixen Dovetail, 9x50 Finder, 2-inch Dielectric Diagonal, Metal Flight Case |
| Standard Warranty | 2-Year Limited Warranty |
| Application | Deep-sky astrophotography acquisition loops, transforming a long f/9 system into a faster f/7.65 layout to compress exposition intervals while straightening corner stellar patterns. |
You may also like…
Related products
Reviews
There are no reviews yet.