The Baader Classic Ortho series is based on the traditional orthoscopic design, but with modern improvements in coating and field of view. These eyepieces are designed for situations where sharpness and contrast are critical, such as observing the moon, planets and binary stars.
With a simple four-lens design and high-quality multicoatings, the Classic Orthos deliver a bright, high-contrast image with minimal reflections. Compared to classic orthoscopes, they offer a slightly wider 52° apparent field of view, without compromising image quality.
Thanks to their compact construction, these eyepieces are also particularly suitable for binoviewers, where low mass and good image correction are important. The included rubber eyecup increases viewing comfort, also for eyeglass wearers.
What do you see with it
- Fine details on Jupiter: cloud bands and the Great Red Spot
- Saturn with rings and the Cassini line
- High-contrast lunar craters and shadow structures
- Mars with polar caps and contrast differences
- Narrow double stars sharply separated
Specifications per model
| Model | Focal length | Apparent field of view | Eye relief |
|---|---|---|---|
| 6 mm | 6 mm | 52° | 4 mm |
| 10 mm | 10 mm | 52° | 6 mm |
| 18 mm | 18 mm | 52° | 13 mm |
Application
The Baader Classic Orthos are ideal for telescopes with longer focal ratios (f/7 and above), and popular among advanced observers seeking maximum sharpness. They also prove their worth in binoviewers and educational settings (clubs and schools) thanks to their simplicity and reliability.
Specifications
Type: Orthoscopic eyepiece
Barrel size: 1.25″
Field of view: 52°
Optics: Four-lens design with multicoating
Suitable for: Refractors, Maksutovs, Newtonians, binoviewers
Comfort: Rubber eyecup, low distortion
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