Esprit 100mm ED APO Triplet Refractor Optical Tube - S11410
Sky-Watcher
The Sky-Watcher Esprit 100mm ED APO Triplet Refractor is a premium apochromatic refractor engineered for serious astrophotographers seeking high-performance wide-field imaging. Its three-element air-spaced ED optical design with FPL-53 glass virtually eliminates false color, delivering exceptional contrast and sharpness across the entire field of view. The dual-speed Helinear track focuser provides smooth, rock-solid focusing with zero image shift, while the included 2-element field flattener ensures a flat imaging plane across full-frame DSLR sensors. Complete with comprehensive accessories including an 8x50 finderscope, 2-inch dielectric diagonal, and M48 camera adapter, this compact yet rugged telescope delivers the imaging performance expected from telescopes costing thousands of dollars more.
Looks like this product is no longer available.
Specifications
| Coatings | Fully Multi-Coated MHTC |
| Image Circle | 40 mm |
| Tube Material | Rolled Steel |
| Dovetail Type | Losmandy D-Plate |
| Warranty | 2 |
| Focuser Type | Dual-Speed Helinear Track Rack-and-Pinion |
| Camera Adapter | M48 |
| Aperture | 100 mm |
| Field Flattener | 2-Element Glass Doublet |
| Focuser Size | 3.4 in |
| Diagonal | 2-Inch Dielectric |
| Focal ratio | f/5.5 |
| Weight | 16.3 lb |
| Glass Type | FPL-53 ED with BK-7 |
| Focal length | 550 mm |
| Optical Tube Diameter | 5.75 mm |
| Optical design | Triplet Apochromatic ED |
| Finderscope | 8x50 Right-Angle |