These eyepieces allow 20mm of eye relief for viewing comfort, even with high power. The rubber eyecups are included to keep out extraneous light. These eyepieces are especially valuable for observers wearing eyeglasses. They provide long enough eye relief to take in the entire field of view when viewing with eyeglasses on. 

Apparent Field of View is 56 degrees for LET 2" 28mm.

Apparent Field of View is 56 degrees for LET 2" 35mm.​

Apparent View of Field is 52 degrees for LET 2" 42mm.