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Description
- 102mm Aperture
- 714mm Focal Length, f/7 Focal Ratio
- Apochromatic Triplet Lens System
- Hoya FCD100 Extra Low Dispersion Glass
- Proprietary EMD Enhanced Multi-Coatings
- Two-Speed 2" Rack-and-Pinion Focuser
- 1.25" Adapter and 90� Star Diagonal
- Vixen-Style Dovetail Plate
- Mounting Cradle-Ring with Handle
- Mount and Tripod Required
The ED102 102mm f/7 Essential Apochromatic FCD100 ED Triplet Refractor Telescope from Explore Scientific features a triplet apochromatic lens system with Hoya's exceptionally engineered and crafted FCD100 extra-low dispersion (ED) glass and Explore Scientific's proprietary anti-reflection EMD fully multi-coated optics. This combination of glass, lenses, and coatings virtually eliminates chromatic and spherical aberrations for clear and bright images without distortion across the entire field of view, with true color rendition. This is a versatile optical tube assembly that is powerful enough to clearly see the planets and bright deep sky objects. It has a relatively small form-factor that makes it perfect as a portable grab-and-go option, or set up on a dual-mount rig for astrophotography/astroimaging.
A mounting cradle-ring clamps over optical tube assembly (OTA). The cradle-ring 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 rack-and-pinion focuser helps make fine-focusing fast and precise. A 90� star diagonal is also included for more comfortable viewing. The mirror has dielectric coatings for a 99% light transmission for minimal light loss when using it.
- Optical Performance
-
- 102mm objective lens
- 714mm focal length
- Focal ratio: f/7
- Refractor-style optical design
- Hoya FCD100 extra-low dispersion (ED) glass all but eliminates chromatic aberration for enhanced contrast and accurate color rendition across the entire visible spectrum
- Triplet apochromatic lenses reduces spherical aberrations and corrects distortion across the entire field of view
- Proprietary anti-reflection EMD enhanced multi-coatings on all optics improve light transmission to help produce bright and clear high-contrast images
- Resolution: 1.14 arc sec
- Use and Handling
-
- Two-speed 2" rack-and-pinion focuser
- Bracket for user-supplied finderscope
- One-piece 2" 90� star diagonal with highly-reflective dielectric coatings for up to 99% light transmission
- 1.25" eyepiece adapter
- Mount
-
- Vixen-style dovetail plate included
- User-supplied mount and tripod required
- 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 carry handle on cradle-ring assembly
- 2" ES Star Diagonal
- 1.25" Eyepiece Adapter
- Limited 1-Year USA Warranty, Extendable to Transferrable Lifetime Warranty with Registration
| Optical Design | Apochromatic triplet refractor |
| Aperture | 4.0" (102 mm) |
| Focal Length | 714 mm |
| Focal Ratio | f/7 |
| Resolution | 1.14 arc sec |
| Eyepiece Barrel Diameter | 2", 1.25" with included adapter |
| Diagonal | 90� |
| Finderscope | None |
| Tripod | None |
| Mount Type | Vixen-style dovetail |
| Optical Tube Dimensions | Diameter: 4.7" (11.9 cm) Length: 30.5" (77.4 cm), with dew shield Length: 23.8" (603 cm), without dew shield |
| Weight | 12.0 lb (5.4 kg) |
Bulk Discount
| Quantity | Price |
| 2 | ₹ 288022.0 |
| 3-5 | ₹ 285083.0 |
| 5-10 | ₹ 279205.0 |
| 10+ | ₹ 273327.0 |
Bulk discount will be automatically applied during checkout based on quantity.