Omegon Redline SW 3.5 mm Eyepiece 70° (1.25 and 2 inch): 70 degree field of view with ED optics
The Omegon Redline SW 3.5 mm combines a 70-degree field of view with an ED lens element and a generous 20 mm eye relief. It has the shortest focal length in the series, for maximum magnification in calm conditions.
The holder is double-designed: the eyepiece fits directly into both a 1.25-inch and a 2-inch focuser, without an adapter.
ED optics for color purity
The ED element keeps color errors low, and the multi-layer coating on all air-to-glass transitions maximizes light transmission. The result is a sharp, high-contrast image all the way to the edge, even on faster telescopes.
20 mm eye relief and 70 degrees
This combination is what the Redline is known for: the wide field of view of a wide-angle eyepiece combined with the relaxed viewing experience that eyeglass wearers need. On a Dobsonian telescope without a tracking motor, objects stay in view significantly longer.
Ready for photography
Under the eyepiece is an M43 thread. You can use this with an adapter to connect an eyepiece projection camera, for example, for moon photography with a system camera.
What do you see with 3.5 mm?
On a telescope with a 750 mm focal length, a 3.5 mm eyepiece provides a magnification of 214x, and at 1200 mm, 343x. Reserve the latter for large apertures: a realistic maximum is 2x the aperture in millimeters.
Fine-scale features along the lunar terminator, the Cassini Division, and close binary stars are the targets for which this brand point exists.
Featured accessories
The Redline series ranges from 3.5 to 32mm with the same eye relief and eye distance: a set of two or three focal lengths covers everything from planetary detail to overview. An Omegon moon filter dims the bright moon image at longer focal lengths.
For whom yes and for whom no
- ✓ Advanced observers who want one series for planets and deep-sky
- ✓ Scope Mounts: 20 mm eye relief with full 70-degree field of view
- ✓ For those who want to photograph with eyepiece projection, thanks to the M43 thread
- For those on a tight budget: the UWA series offers wide-angle views for less money
Specifications
| Focal length | 3.5 mm |
| Apparent field of view | 70 degrees |
| Eye relief | 20 mm |
| Optical design | multi-layer coated, with ED lens element |
| Mount | 1.25 and 2 inch, with filter thread |
| Photography | M43 thread under the eyepiece |
| Series | Omegon Redline SW 70° |
You can find more accessories for this merk at the Omegon merk Page.
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