1.25倍 Galilean目镜

1,25" Galilean Eyepiece

2023-05-12 13:15:07

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Summary

The initial use of eyepieces involved the utilization of a simple concave lens, which offered the advantage of producing non-mirrored or upside-down images. However, these eyepieces had a relatively smaller field of view compared to the subsequently invented Keplerian eyepieces.

This eyepiece is designed for a concave lens with the following setup:

Diameter: 25.4 mm
Focal length: -25 mm

Leave a comment and I can generate setups for other specification of a concave lens.