| 摘要 |
PROBLEM TO BE SOLVED: To provide a photographing lens and a zoom lens having an image blurring correcting function capable of making a distance from a correction optical system to the center of rotation thereof so short that an entire lens frame is constituted to be compact, and obtaining a sufficient correction amount by rotating the correction optical system at a small rotational angle. SOLUTION: The photographing lens has the correction optical system 1 correcting the image blurring by rotating centering around one point 2 near an optical axis in the photographing lens and satisfies following conditional expressions. 0.01<L/fT<1 and 0.1<(L×εT)/(atan(σ/fT)×fT)<0.6 Provided that L means a distance from a surface top nearer to the center of rotation 2 of the optical system 1 to the center of rotation 2,σmeans an image blurring amount to be corrected, fT means the focal distance of the photographing lens entire system,εT means an angle to rotate the optical system 1 in order to correct the image blurring amountσ, and atan(σ/fT) means a camera shake angle in the case the image blurringσcaused by camera shake occurs. |
