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Condition:
This is a used Zhumell 3mm LER eyepiece in excellent condition. The optics and body are clean and free of any marks. This does not include a box or case, but comes with both dust caps.
Description:
Zhumell Z Series Planetary 3mm Eyepiece will heighten the enjoyment of your telescope by increasing magnification without breaking the bank
One of the features that sets Zhumell Z Series Planetary Eyepieces apart from the competition is their extra long eye relief of 20mm. With great eye relief such as this, your eyelashes will stay away from the glass, and if you wear eyeglasses, you will find that viewing is extra comfortable and you can see the entire field of view. A soft rubber eyecup provides a cushion between the eyepiece barrel and your eye or glasses. Just fold the eyecup down if you’re an eyeglass wearer, or keep it upright if you’re not.The Zhumell Z Series eyepieces reveal an apparent field of view of 55 degrees; perfect for planets, the Moon, and most deep-sky objects. Their barrel size is a standard 1.25” in diameter, making them compatible with a huge variety of telescope focusers, diagonals, Barlow lenses, and other astronomical accessories. To help bring out details on the planets, or decrease the light throughput when viewing brilliant objects such as the Moon and Venus, simply thread an 1.25” planetary or moon filter to the end of the eyepiece barrel.
These eyepieces bring together in an extraordinary way the elegance and optical power and will enrich your observation results in the future. All Zhumell LER eyepieces feature a very high synchronized power with respect to sharpness and contrast that you search in vain in eyepieces of this category. Which is attached to an excellent optical design, as the eyepieces correspond exactly to the conditions required by the people making the observations.
Comfortable handling and excellent contrast
Even in the case of high-power reflector telescopes, LER eyepieces give completely distortion-free representations up to the edge of the visual field . The interior layout consists of seven groups of lens elements in four groups (in the case of 3mm focal length, five elements in three groups). The edges of all lenses They have a black coating, and the glass/air surfaces are vaporized with a highly effective multi-layer coating to suppress reflections. A notable difference from conventional eyepieces is the large interocular distance of 20mm, which guarantees the Very comfortable handling . Even people who wear glasses can benefit from the full field of vision. The apparent field of vision increases to 55 ° .
Brilliant renderings and excellent transparency
Various tests have demonstrated, compared to similar eyepieces, greater transparency and brighter images with dark backgrounds and without disturbing stray light. The internal aperture system contributes substantially to the reduction of stray light. All focusing distances have 21 mm diameter lenses at the observation end. The eyepieces, at the edges, do not artificially increase the field of view, but rather They represent a real field without serious distortions on the edges.
When using LE eyepieces, It is not necessary to adhere exactly to the optical axis. Vibrations when viewed through this device do not disturb observation, as they do not cause shadows, which are often called the "kidney bean effect."
The advantages at a glance:
- High-quality eyepieces
- Robust body of the eyepiece
- High contrasts
- Comfortable to handle
- Interocular distance of 20mm
- Soft rubber goggles
- Suitable for double application
- No noticeable kidney-bean effect
Note: LER-Planetary eyepieces are ideal for observing planets, providing high-contrast images. They are also ideal for observing deep sky objects, as they also provide high contrast and high transmission.