Patent ID: 8599481

Claim:
A method of making a rifle scope, comprising the steps of: (a) providing a mounting assembly that includes a longitudinal base plate and a mating, closure housing piece; (b) attaching separate optical assemblies to said longitudinal base plate to form an optical train of optical assemblies, extending longitudinally along said longitudinal base plate, to form an image magnifying assembly, (c) mating said mating, closure housing piece to said longitudinal base plate and fastening said closure housing piece to said longitudinal base, thereby forming a rifle scope; wherein said optical assemblies include an objective lens and a Petzval lens that is held by a Petzval lens holder, that is supported by a support, that is attached to said longitudinal base plate to the rear of said objective lens; and wherein said Petzval lens holder is adjustable in longitudinal position, relative to said support and thereby to said longitudinal base plate and is adjusted after performing step (b), but prior to performing step (c).