Wide angle lens system

A retrofocus type wide angle lens system which comprises:

• a first positive lens;
• a second negative meniscus lens having a face of larger curvature towards the image side and being in light communication with said first lens;
• a third negative meniscus lens having a face of larger curvature towards the image side and being in light communication with said second lens;
• a fourth positive lens bonded to said face of larger curvature of said third lens and being in light communication with said third lens;
• a fifth negative meniscus lens having a face of larger curvature towards the image side and being in light communication with said fourth lens;
• a sixth positive lens in light communication with said fifth lens;
• a seventh negative lens in light communication with said sixth lens;
• an eighth positive meniscus lens having a face of larger curvature towards the image side and being in light communication with said seventh lens;
• a ninth positive lens being in light communication with said eighth lens, said lens system satisfying the following conditions:
• ##EQU3## wherein F equals 100 and is the composite focal length of the total lens system;
• F.sub.1,2, . . ., i is the composite focal length of the lens group consisting of 1st to ith lenses;
• r.sub.j is the radius of curvature of jth lens face;
• d.sub.k is the k th spacing or lens thickness;
• n.sub.i is the d-line refractive index of ith lens;
• .nu..sub.i is the Abbe number of ith lens;
• r.sub.1 = 246.8 d.sub.1 = 19.2 n.sub.1 =1.71300 .nu..sub.1 =54.0 r.sub.2 = 604.7 d.sub.2 = 0.4 r.sub.3 = 103.5 d.sub.3 = 6.1 n.sub.2 =1.62041 .nu..sub.2 =60.3 r.sub.4 = 43.6 d.sub.4 = 23.1 r.sub.5 = 183.0 d.sub.5 = 4.1 n.sub.3 =1.78590 .nu..sub.3 =44.2 r.sub.6 = 47.5 d.sub.6 = 15.8 n.sub.4 =1.67270 .nu..sub.4 =32.1 r.sub.7 = 172.8 d.sub.7 = 2.0 r.sub.8 = 111.4 d.sub.8 = 5.3 n.sub.5 =1.64250 .nu..sub.5 =58.4 r.sub.9 = 53.0 d.sub.9 = 18.5 r.sub.10 = 113.5 d.sub.10 = 43.2 n.sub.6 =1.74320 .nu..sub.6 =49.4 r.sub.11 = - 91.2 d.sub. 11 = 10.7 r.sub.12 = - 126.2 d.sub.12 = 16.0 n.sub.7 =1.80518 .nu..sub.7 =25.4 r.sub.13 = 171.9 d.sub.13 = 5.5 r.sub.14 = - 563.0 d.sub.14 = 14.3 n.sub.8 =1.52307 .nu..sub.8 =58.4 r.sub.15 = - 65.3 d.sub.15 = 0.4 r.sub.16 = 34680.0 d.sub.16 = 10.8 n.sub.9 =1.69680 .nu..sub.9 =55.7 r.sub.17 = - 146.9 F F.sub.1 = 571.4 = 0.175 F F.sub.1.2.3.4.5 = - 65.4 = - 1.53 F F.sub.1.2.3.4.5.6 = 149.3 = 0.67