Celestron Omni 40 mm: the lowest magnification for overview and searching
The Celestron Omni 40 mm is a classic Plossl eyepiece with four fully multi-coated lens elements. The lens edges are black to reduce internal reflections, resulting in a contrast-rich image with natural colors.
The 40 mm provides the lowest magnification within the Omni series and thus the brightest image. Convenient as a viewfinder and for large, faint objects under a dark sky.
Features
- Forty-degree Plössl design with fully multi-coated optics
- Blackened lens edges for maximum contrast
- Aluminum housing with matte anodized finish to prevent stray light
- Foldable rubber eyecup, also usable with glasses
- Threads for 1.25-inch (31.75 mm) filters
Compatibility
Fits any 1.25 inch (31.75 mm) focal length or zenith mirror and works with any telescope type: refractor, reflector and catadioptric. The magnification you achieve is the focal length of your telescope divided by 40 mm.
Specifications
| Focal length | 40 mm |
| Optical design | Plössl, 4 elements |
| Connection size | 1.25 inches (31.75 mm) |
| Coating | Fully multi-coated |
| Filter thread | Yes, 1.25 inch |
| Eyecup | Rubber, foldable |
You can find more accessories for this brand at the Celestron brand page.
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