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Description
Sky-Watcher ProED 100mm f/9 Doublet APO Refractor (OTA only)100mm Apochromatic Refractor 900mm Focal Length, f 9 Focal Ratio Proprietary MHC Multicoated Optics Schott BK 7 and FPL 53 ED Glass 2" Crayford Focuser with 1. 25" Adapter 20mm and 5mm Eyepieces, 90 Diagonal 8x50 RA Erect Image Finderscope Vixen Style Dovetail Plate & Cradle Ring Foam Lined Aluminum Carrying Case The ProED 100mm f 9 Doublet APO Refractor from Sky Watcher features a doublet apochromatic lens system with Extra low Dispersion (ED) glass
- 100mm Apochromatic Refractor
- 900mm Focal Length, f/9 Focal Ratio
- Proprietary MHC Multicoated Optics
- Schott BK-7 and FPL-53 ED Glass
- 2" Crayford Focuser with 1.25" Adapter
- 20mm and 5mm Eyepieces, 90° Diagonal
- 8x50 RA Erect-Image Finderscope
- Vixen-Style Dovetail Plate & Cradle-Ring
- Foam-Lined Aluminum Carrying Case
The ProED 100mm f/9 Doublet APO Refractor from Sky-Watcher features a doublet apochromatic lens system with Extra-low Dispersion (ED) glass and Sky-Watcher's proprietary photon anti-rejection Metallic High-Transmission Coatings (MHC) on all air-to-glass optical surfaces. This combination of glass, lenses, and coatings virtually eliminates chromatic aberrations for clear and bright high-contrast images with true color rendition. This is a versatile optical tube assembly (OTA) that is well suited for wide-field astronomical observation of prominent nebulae, star clusters and galaxies, or can be used as an astrograph for sky photography, a terrestrial spotting scope or telephoto lens. The aperture of this 100mm model of the ProED not only increases image brightness over the smaller 80mm version, it improves resolution and contrast.
A mounting cradle-ring clamps over OTA and allows the user to adjust the orientation and position of the scope relative to the mount to optimize viewing comfort and balance, while avoiding interference with other equipment. The scope is offered without a mount or tripod, but a Vixen-style dovetail plate makes it compatible with any alt-az or equatorial mount with a Vixen-style saddle.
Its two-speed Crayford-style focuser helps make fine-focusing fast and precise without backlash. The ProED comes with several accessories to help you get observing faster and easier. First, are two long eye relief eyepieces that produce 30 and 120x magnification, a 90° star diagonal for more comfortable viewing, and a large 8x50 erect-image finderscope to make finding your celestial objects faster and easier. Finally, Sky-Watcher provides a foam-lined aluminum carrying case to safely store and transport the OTA.
- Optical Performance
-
- 100mm objective lens
- 900mm focal length
- Focal ratio: f/9
- Refractor-style optical design
- Extra-low Dispersion (ED) glass
- Apochromatic doublet lenses eliminate chromatic aberrations for true color rendition and enhanced contrast
- Proprietary anti-reflection Metallic High-Transmission Coatings (MHC) multicoatings on all optics
- Bbjective lens cell is light-baffled to reject stray, unfocused light
- Baffled draw tube for enhanced contrast
- OTA interior is flat blackened to help prevent unfocused internal light reflections from reaching the focal plane
- Resolution, Rayleigh: 1.39 arc sec
- Resolution, Dawes: 1.16 arc sec
- Focuser
-
- 2" diameter focuser
- Dual-speed Crayford-style
- Crayford focusers use a toothless friction system that allows for super-fine precision focusing without backlash
- Includes 1.25" adapter for using smaller eyepieces and accessories
- Included Accessories
-
- Two 1.25" barrel diameter eyepieces:
- 5mm eyepiece: Yields 180x magnification
- 20mm eyepiece: Yields 45x magnification
- Diagonal:
- 90° angle
- Dielectric coatings for greater than 99% reflectivity
- Star diagonal corrects images vertically, but not horizontally
- 8x50 erect-image finderscope with bracket
- Foam-lined hard aluminum carrying case
- Two 1.25" barrel diameter eyepieces:
- Mount
-
- User-supplied mount and tripod required
- Vixen-style dovetail plate included
- Compatible with any alt-az or equatorial mount with a Vixen-style saddle
- Cradle-ring assembly for plate allows the scope orientation to be changed based on mount configuration
- Integrated 1/4"-20 piggy-back camera mount for wide-field astrophotography
- Quick-release system for fast setup and breakdown
| Optical Design | Apochromatic Refractor |
| Aperture | 3.9" / 100 mm |
| Focal Length | 900 mm |
| Focal Ratio | f/9 |
| Eyepiece Barrel Diameter | 2" 1.25" with included adapter |
| Diagonal | 90° Star |
| Finderscope | 8x50 erect-image |
| Tripod | None |
| Mount Type | Vixen-style dovetail |
| Length | 36.2" / 92.0 cm |
| Weight | 10.0 lb / 4.5 kg |
| Packaging Info | |
|---|---|
| Package Weight | 28.8 lb |
| Box Dimensions (LxWxH) | 41.0 x 16.0 x 11.0" |
- 5mm Eyepiece
- 20mm Eyepiece
- 2" 90&Deg; Diagonal
- 1.25" Eyepiece Adapter
- 8x50 Finderscope with Bracket
- Mounting Plate and Cradle Ring Assembly
- Foam-Lined Aluminum Carrying Case
- Limited 2-Year Warranty
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy