Orion Erfle 32mm 2 Inch Multicoated Eyepiece (Pre-owned)
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This Orion Erfle 32mm 2" eyepiece is a good choice due to its wide field of view, excellent light transmission, comfortable eye relief, and solid build quality. Its versatility and affordability make it a valuable addition to any astronomer's eyepiece collection, particularly for those interested in wide-field observations and deep-sky objects. This pre-owned eyepiece has a clear lens with no blemishes. Reasons to buy this eyepiece include:
Wide Field of View: The Erfle design is known for providing a wide apparent field of view, typically around 60-70 degrees. The 32mm focal length allows for expansive views, making it ideal for deep-sky observations and scanning large portions of the sky. This wide field helps in locating and observing extended objects like star clusters, nebulae, and galaxies.
Multi-Coated Optics: The multicoated lenses significantly improve light transmission and reduce reflections, enhancing image brightness and contrast. This results in clearer and more detailed views, which is especially beneficial for faint objects.
Large Eye Lens and Eye Relief: The 32mm focal length often comes with a large eye lens, making it comfortable to use. It usually provides generous eye relief, allowing users to observe for extended periods without experiencing eye strain. This is particularly advantageous for those who wear glasses, as they can see the entire field of view without removing their eyewear.
2-Inch Barrel Size: The 2-inch barrel size allows for a wider field of view compared to 1.25-inch eyepieces. It also means more light can enter the eyepiece, which is advantageous for low-power, wide-field observations. Additionally, the 2-inch format is compatible with a range of telescopes and accessories designed for larger eyepieces.
Quality Build and Durability: Orion is known for producing reliable and well-constructed astronomical equipment. The build quality of their eyepieces ensures durability and long-term performance, making them a good investment for amateur astronomers.
Versatility: The wide field of view and long eye relief make this eyepiece suitable for various types of observing, from wide-field scanning to detailed views of large celestial objects. It's particularly effective for use with telescopes that benefit from low magnification and wide fields, such as Dobsonians and large refractors.