Imaging lens and imaging apparatus

An imaging lens comprising:

• a first lens group always fixed and having positive refractive power, and a first focus lens group that moves in an optical axis direction at a time of focusing from an object at infinity to an object at close range, in order from an object side to an image side;
• a last lens group always fixed and having negative refractive power, and a second focus lens group that moves in an optical axis direction at a time of focusing from an object at infinity to an object at close range, in order from the image side to the object side,
• at least one of the first focus lens group or the second focus lens group having negative refractive power;
• and
• an aperture stop disposed between the first focus lens group and the second focus lens group,
• the imaging lens satisfying Conditional Expression (1) below:
• 0.4<f/ff<1.0 (1)
• where
• f:
• a focal length of a whole system
• ff:
• a combined focal length of the first lens group and the first focus lens group, wherein
• the first lens group includes at least one meniscus lens having negative refractive power, and
• the first lens group satisfies Conditional Expression (4) below:
• 1.0<(r1+r2)/(r1−r2)<10 (4)
• where
• r1:
• an object-side surface of a meniscus lens having negative refractive power located closest to the object side in the first lens group
• r2:
• an image-side surface of the meniscus lens having the negative refractive power located closest to the object side in the first lens group.

An imaging apparatus comprising:

• an imaging lens and an image pickup device that converts an optical image formed by the imaging lens into an electrical signal,
• the imaging lens comprising:
• a first lens group always fixed and having positive refractive power, and a first focus lens group that moves in an optical axis direction at a time of focusing from an object at infinity to an object at close range, in order from an object side to an image side;
• a last lens group always fixed and having negative refractive power, and a second focus lens group that moves in an optical axis direction at a time of focusing from an object at infinity to an object at close range, in order from the image side to the object side,
• at least one of the first focus lens group or the second focus lens group having negative refractive power;
• and
• an aperture stop disposed between the first focus lens group and the second focus lens group,
• the imaging lens satisfying Conditional Expression (1) below:
• 0.4<f/ff<1.0 (1)
• where
• f:
• a focal length of a whole system
• ff:
• a combined focal length from the first lens group to the first focus lens group, wherein
• the first focus lens group comprises an object-side lens component having negative refractive power and an image-side lens component having negative refractive power, and
• the object-side lens component is formed by a cemented lens comprising a positive lens located on the object side and a negative lens located on the image side.