Provided are binoculars and an ocular lens having an excellent optical performance.Binoculars 10 includes: a first lens-barrel (main body 26) and a second lens-barrel (main body 36) having an objective lens (objective lens group 101, 201) and an ocular lens (ocular lens group EL); and an Abbe-Koenig prism (erecting prism 110, 210) which is an erecting optical element included in the first lens-barrel (main body 26) and the second lens-barrel (main body 36), and is characterized in that the product of an effective diameter (mm) of the objective lens (objective lens group 101, 201) and the real field of view (°) is 450 mm° or larger.
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