A wide angle lens whose field angle exceeds 180 degrees and whose F-number is less than 2.8, comprising: a front group, a diaphragm (S), and a rear group, which are arranged in the stated order from an object side toward an image side, wherein the front group consists of a first lens (L1) that is a negative meniscus lens whose convex surface is facing the object side, a second lens (L2) that is a negative lens, and a third lens (L3) that is a positive lens, which are arranged in the stated order from the object side toward the image side, the rear group consists of a fourth lens (L4) that is a positive lens, a fifth lens (L5) that is a negative lens, and a sixth lens (L6) that is a positive lens, which are arranged in the stated order from a diaphragm side toward the image side, the third lens (L3) in the front group is made of a material having an Abbe number of vdL3 that satisfies a condition of vdL3<21, and the fifth lens (L5) in the rear group is made of a material having an Abbe number of vdL5 that satisfies a condition of vdL5<21, characterised in that the first to sixth lenses form an imaging system including a total of six separate lenses, the second lens (L2) is a negative meniscus lens whose convex surface is facing the object, the third lens (L3) is a double-convex lens, the fourth lens (L4) is a double-convex lens, in which the surface having the larger curvature is facing the image, the fifth lens (L5) is a double-concave lens, the sixth lens (L6) is a double-convex lens, both surfaces of the second lens (L2), both surfaces of the fourth lens (L4), and both surfaces of the sixth lens (L6) are aspheric, and the first lens (L1) is a glass lens; and the second lens (L2), the fourth lens (L4), and the sixth lens (L6) are resin lenses. a front group, a diaphragm (S), and a rear group, which are arranged in the stated order from an object side toward an image side, wherein the front group consists of a first lens (L1) that is a negative meniscus lens whose convex surface is facing the object side, a second lens (L2) that is a negative lens, and a third lens (L3) that is a positive lens, which are arranged in the stated order from the object side toward the image side, the rear group consists of a fourth lens (L4) that is a positive lens, a fifth lens (L5) that is a negative lens, and a sixth lens (L6) that is a positive lens, which are arranged in the stated order from a diaphragm side toward the image side, the third lens (L3) in the front group is made of a material having an Abbe number of vdL3 that satisfies a condition of vdL3<21, and the fifth lens (L5) in the rear group is made of a material having an Abbe number of vdL5 that satisfies a condition of vdL5<21, characterised in that the first to sixth lenses form an imaging system including a total of six separate lenses, the second lens (L2) is a negative meniscus lens whose convex surface is facing the object, the third lens (L3) is a double-convex lens, the fourth lens (L4) is a double-convex lens, in which the surface having the larger curvature is facing the image, the fifth lens (L5) is a double-concave lens, the sixth lens (L6) is a double-convex lens, both surfaces of the second lens (L2), both surfaces of the fourth lens (L4), and both surfaces of the sixth lens (L6) are aspheric, and the first lens (L1) is a glass lens; and the second lens (L2), the fourth lens (L4), and the sixth lens (L6) are resin lenses. <EOS>