103 APO Triplet Refractor
Askar
From $1,199.00
6 stores
The Askar 103 APO Triplet Refractor is a versatile 103mm apochromatic telescope designed for both astrophotography and visual observation. Featuring a triplet air-spaced optical design with ED (extra-low dispersion) glass, it delivers fully corrected color-free views across a full-frame image circle with its native f/6.8 focal ratio. The telescope offers exceptional modularity—removing the rear tube section allows for binoviewer use during visual observation or enables attachment of optional focal reducers (0.8x at f/5.4 or 0.6x at f/4), making it an excellent all-in-one platform for imaging and eyepiece observation. With its compact 5.5 kg weight, premium 3.3-inch dual-speed rack-and-pinion focuser, dual finder bases for accessory mounting, and retractable dew shield with anti-reflective matting, the 103 APO represents professional-grade optical quality and attention to detail that appeals to serious amateur and professional astrophotographers seeking a high-performance refractor.
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Specifications
| Mount type | Vixen Dovetail |
| Back Focus (Standard Configuration) | 142 mm |
| Focal Length with 0.8x Reducer | 560 mm |
| Optical design | Triplet Air-Spaced APO with ED Glass |
| Focuser Type | Dual-Speed Rack and Pinion |
| Dovetail Plate Length | 290 mm |
| Focal Ratio with 0.8x Reducer | f/5.4 |
| Weight (OTA Only) | 10.47 kg |
| Focuser Size | 3.3 in |
| Tube Rings Weight | 750 kg |
| 1x Flattener Weight | 0.58 kg |
| Focal ratio | f/6.8 |
| Weight (with 0.6x Reducer) | 6.5 kg |
| Focuser Travel Distance | 10 cm |
| OTA Length (Dew Shield Retracted) | 600 mm |
| 0.6x Reducer Weight | 0.98 kg |
| Weight (Complete with Rings and Dovetail) | 5.5 kg |
| Focuser Dual Speed Ratio | 10:1 |
| Eyepiece Adapters Included | 2 inch and 1.25 inch |
| 0.8x Reducer Weight | 0.48 kg |
| Focal length | 700 mm |
| OTA Length (Dew Shield Extended) | 711 mm |
| Focal Length with 0.6x Reducer | 420 mm |
| Finder Bases | 2 (both sides of focuser) |
| Focal Ratio with 0.6x Reducer | f/4 |
| Aperture | 103 mm |
| Back Focus (Extended with Rear Tube Removed) | 242 mm |