Small size retrofocus wide angle photographic lens

A small size retrofocus wide angle photographic lens system comprising seven groups of lenses consisting of a total of eight lens elements, in order of position from the object to the image side of the lens system:

• a positive meniscus lens convex to the object constituting the first group, a negative meniscus lens convex to the object constituting the second group, a negative meniscus lens convex to the object constituting the third group, a thick double convex positive lens constituting the fourth group, a positive meniscus lens convex to the image constituting the fifth group, a double concave negative lens and a double convex positive lens constituting the sixth group, said sixth group having a positive focal distance, and a positive meniscus lens convex to the object.