18mm Eyepiece Ultra Flat Field

This “Ultra flat field” eyepiece is designed to give a “100% corrected image” from edge to edge. Spherical aberration you can see in standard eyepieces (sharp in the center and blur on the edges) is perfectly corrected on the entire 65° field of view.
The wide field of 65° gives you confortable and sharp images when observing moon, deep sky objects like globular clusters or planets.
You can plug your DSLR camera with the T-ring thread on the top of the eyepiece when removing the rubber eyecup (needs T-ring for your camera).