- Advanced Optics: Features 8 high-quality elements, including aspherical lenses and multi-coated optics;
- High-definition 2X zoom: This eyepiece allows for effortless double magnification during planets or moon phases observations. It brings distant scenes closer in an instant, presenting details with clarity;
- Parfocal Design: SV245 allows you to change magnification without the need for refocusing;
Click Stop knob: Each focal length from 8mm to 16mm is equipped with a precise detent. Provides convenience for stargazing in the dark night; - Dual-lens interface: Features a 1.25" and 2" dual-lens design;
- Compatibility for Astigmatism Corrector Installation: Compatible with all mainstream astigmatism correctors on the market, solving vision focusing problems caused by astigmatism.
Tips: The SV245 can be used upon SVBONY SA401 APO or SV406P spotting scope, it will boost the scope for stellar clarity and ultra-wide views.
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The SV245 zoom eyepiece features 8 high-quality elements and multi-coated optics. This cutting-edge design delivers exceptional sharpness, vivid contrast and true-to-life color correction.
The 17-18mm eye relief design of this SVBONY SV245 parfocal eyepiece ensures there is enough space between your glasses and the eyecup. You can see clearly without removing your glasses.
This clickstop zoom eyepiece is equipped with a click stop design. Each focal length from 8mm to 16mm is equipped with a precise detent. This ensures smooth and accurate adjustment without any play.
This eyepiece is optically excellent.
I bought this eyepiece and tried it out on my 6-inch f10 telescope. I observed the moon and the planet Jupiter. The eye relief and the width of the field of view were pretty good. The images seemed to be sharp and clear from the center to the edge of the field of view. The craters on the moon were wonderful. In a few minutes of very good seeing conditions, with the eyepiece focal length set close to 9 mm., I could observe much intricate and subtle shadings in Jupiter's cloud belts. Jupiter's four bright moons were neatly portrayed with no visible unwanted flare. This eyepiece seems to be optically really good.A good zoom eyepiece can be very useful in observing faint galaxies and comets. You can sometimes see a faint galaxy pop into visibility as you slowly zoom from low to high power.
| Brand | SVBONY | SVBONY | SVBONY |
| Model | SV245 | SV230 | SV215 |
| Focal Length | 8mm-16mm/0.31-0.63" | 8mm-20mm | 3-8mm |
| Apparent Field of View | 63° | 57°- 72° | 56° |
| Barrel Size | 1.25" & 2" | 1.25" & 2" | 1.25" |
| Coatings | Fully multi-coated | Fully multi-coated | Fully multi-coated |
| Blackened Lens Edges | Yes | Yes | Yes |
| Eye Relief | 18-17mm/0.71-0.67" | 17-19mm | 10mm |
| Parfocal | Yes | Yes | Yes |
| Rubber Eye Guard | Yes | Yes | Yes |
| Clickstop Click Design | Yes | Yes | Yes |
| Dioptrix Mounting | Support | Support | No |
| Material of Barrel | Stainless steel-1.25" & Aluminum Alloy-2" | Stainless steel | Stainless steel |
| Filter Threads | M28.5x0.6 & M48x0.75 | M28.5x0.6 & M48x0.75 | M28.5x0.6 |
| Groups/Elements | 5/8 | 6/9 | 4/6 |
| Outer Diameter | 60mm/2.36" | 60mm | |
| Net Weight | 486g/17.17oz | 500g/17.66oz | |
| Size | 129*60mm/5.08*2.36" |
Feature
- 1. Ultra-wide-angle design: 63° wide field of view meets mainstream needs. This SVBONY SV245 zoom eyepiece strikes a perfect balance between portability and performance. Enjoy a consistent, immersive field of view without losing the field of view during zooming;
- 2. 17-18mm pupil distance: The 17-18mm exit pupil distance design of this astro eyepiece ensures there is enough space between your glasses and the eyecup. You can observe clearly without taking off your glasses;
- 3. Supports installation of astigmatism corrector: All mainstream astigmatism correctors available in the market can be installed, and by doing so, the issue of elderly individuals being unable to achieve visual focus due to astigmatism can be resolved.
- 4. Folding eye mask: The SV245 zoom eyepiece's folding eye mask ensures optimal eye relief for glasses wearers. While non-glasses users can simply fold it down for a comfortable fit.
Package Includes
SVBONY SV245 Zoom Eyepiece 8mm-16mm *1
2'' Lens Interface *1
Dust Caps *3
Eyepiece Soft Bag *1
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