Description of Steiner Peregrine 8 X 42 Binoculars Unbelievable brightness and very wide field of view. This is the best model for viewing birds flying, in the shade, under trees, or even in the darkness of night. The Peregrine's offer the highest measured broad band transmission of any birding binocular with light transmission over 95% throughout the entire visible color spectrum. Features: Close focus distance: 5.9 feet Exit pupil: 5.25 mm Field of view: 367 feet @ 1,000 yards Weight: 24 ozs. Length: 6.40 inches Height: 2.24 inches Width: 5.15 inches