摘要 |
PROBLEM TO BE SOLVED: To provide compact photographing lenses for optimally correcting various aberrations from a point at infinity to a short range object and obtaining superior optical performance over an entire screen, and to provide optical equipment having the photographing lens and an imaging method. SOLUTION: The photographing lenses include a first lens group G1 having positive refractive power, an aperture diaphragm S, and a second lens group G2 having positive refractive power arranged in order from an object side. The first lens group G1 includes a plurality of lenses. The second lens group G2 includes a cemented lens L34 of a negative lens component L3 directing a concave face on an object side and a positive lens component L4 directing a convex face on an image side, and a biconvex shape positive lens component L5 arranged in order from an object side. When entire length in the whole lens system is TL and the maximum image height is Ymax, a condition of the following inequality: 3.0<TL/Ymax<4.0 is satisfied. COPYRIGHT: (C)2010,JPO&INPIT
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