The field of view is 80 degrees and the eye relief is 7mm. But no color distortion. The illumination is adjustable. It has an 80 deg. At 900mm focal length it produces 43x magnification.
Most seasoned astronomers appreciate what that means.
The lower the magnification the more field of view you have. But this lens goes a step further. The field of view is 80 degrees and the eye relief is 7mm. But no color distortion. The illumination is adjustable.