- SV215 zoom eyepiece is a good assistant for you to observe and take pictures of the planets; it is a good helper for the amateur astronomers to observe Venus; Mars; Jupiter; Saturn etc;
- Adjustable focal length; SV215 3 mm to 8mm zoom eyepiece equivalent to multiple eyepieces; this helps you to zoom in and out rather than changing lens;
- Parfocal across the entire zoom range; minor tweaking may be necessary; you do not need to refocus every time you change the focal length;
- Constant field of view and eye relief; the apparent field of view and the usable eye relief to stay the same as the focal length changes;
- Click and stops design; there are clicks and stops as you pass through the marked zoom levels; easy to use even in the dark
- Zoom ring moves smoothly; the zoom is smooth and gradual as you twist the eyepiece;
- 6-element of 4-group lens structure; fully multi-coated optics for remarkable sharpness; contrast and color correction.
Note: It's not suitable for spotting scopes. The front focal point of the SV215 is located inside the eyepiece body. It requires a main mirror with sufficient focusing range to ensure smooth and focused imaging.
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Clickstop Mechanism
The SV215 eyepiece brings a whole range with focal lengths from 3mm to 8mm in a single high-quality eyepiece! It lets you continuously zoom with Click-stops at 8, 7, 6, 5, 4 and 3 mm.
The field of view will not change with the change of focal length, the process of doubling to give customers a fixed point to pull into the visual enjoyment.
Fantastic Eyepiece
Purchased this eyepiece splendid with my 10inch skywatcher a little bit powerful at 3mm I'm sure would be good if weather was clearer as I tested while there was a bit of haze but first night seeing Jupiter with its Ganyemed moon and red spot crystal clear also tested it on my Gso c6 f/12 also fantastic as for postage ultra fast just 10 days on standard shipping to Aus Svbony is a pleasure to do business with can count on there affordable and quality products keep them coming!!!!
| 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" |
Features
- 1. SV215 zoom eyepiece is a good assistant for you to observe and take pictures of the planets; it is a good helper for the amateur astronomers to observe Venus; Mars; Jupiter; Saturn and so on
2. Adjustable focal length; SV215 3 mm to 8mm zoom eyepiece equivalent to multiple eyepieces; SV215 eyepiece is much better than the kit eyepieces; this helps you to zoom in and out rather than changing lens
3. Parfocal across the entire zoom range; minor tweaking may be necessary; you do not need to refocus every time you change the focal length
4. Constant field of view and eye relief; the apparent field of view and the usable eye relief to stay the same as the focal length changes
5. Click and stops design; there are clicks and stops as you pass through the marked zoom levels; easy to use even in the dark
6. Zoom ring moves smoothly; the zoom is smooth and gradual as you twist the eyepiece; it is very hand-friendly
7. 6-element of 4-group lens structure; fully multi-coated optics for remarkable sharpness; contrast and color correction - 8. Smooth zoom action with click-stops at 3, 4, 5, 6,7 and 8mm for quick changes to precise preset magnifications
9. Parfocal across the entire zoom range (minor tweaking may be necessary, however).
Applicable Accessories
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