Binoculars and ocular lens

An ocular lens comprising:

• from an object side in this order,
• a first lens group having negative refracting power;
• and
• a second lens group having positive refracting power, wherein:
• an object-side focal plane of the second lens group is positioned between the first lens group and the second lens group;
• the first lens group includes, from the object side in this order,
• a meniscus first A lens component whose convex surface is directed toward the object side, and
• a first B lens component having negative refracting power;
• the second lens group includes, in a position closest to the object side, a meniscus second A lens component whose concave surface is directed toward the object side;
• and
• satisfies the condition of the following expressions:
• 1.8≤(−f1)/f≤6.0
• 0.5≤D/f≤2.0
• where
• f is an entire focal length of the ocular lens,
• f1 is a focal length of the first lens group, and
• D is an air space between the first lens group and the second lens group, and
• wherein
• the ocular lens satisfies the condition of the following expression:
• 0.5≤G1Arf/f≤2.0
• where
• G1Arf is a radius of curvature of a lens surface closest to the object side of the first A lens component.