1. A six element fish eye lens system comprising from the object to the image side: a first meniscus shaped lens (L1) of negative refractive power curved towards the object, a second lens (L2) of negative refractive power curved towards the object, a third positive meniscus lens (L3) of positive refractive power curved towards the object, an aperture stop (B), a fourth lens (L4) of positive refractive power curved towards the image, a fifth meniscus shaped lens (L5) of negative refractive power curved towards the image, which lens (L5) is cemented with the fourth lens (L4), and a sixth meniscus shaped positive lens (L6) curved towards the image.