High powered binoculars for bird watching with an extra wide field of view the trophy are the perfect binoculars to enjoy a great field of view and bright images with sharp details. they have extra low dispersion glass that enhances the color and light transmission. the case included in the box allows long and comfortable walks with your equipment. technical features magnification: 10Xlens Ø (mm): 42Exit pupil (mm): 4, 2Geometric light intensity: 17, 6Twilight factor: 20, 5Eye relief min. /max. (Mm): 4/11Pupillary distance min. /max. (Mm): 54/74near point (m): 2, 5Field of view m/ 1, 000 m: 108Height x Width x Depth (mm): 143 x 125 x 58Weight without bag (g): 765Nitrogen filled: Yes Waterproof: Yes Eyepieces for spectacle wearers: Yes Prisms: BaK-4, phase-corrected and dielectric mirror coated Coating: Full multi-coating: 10 years and garantie+what's in the box trophy D 10x42 binoculars; Protective dust caps; comfortable carrying strap with quick-release fastener; High quality carry-case