I was just given a Minolta XG-7 and an SR-1 bodies with an Auto-W Rokkor HG 35mm
f2.8, a MD Rokkor-X 50mm f1.7, and a MC Minolta Celtic 35mm f2.8. I have never
heard of Celtic. The build of the lens is quite nice. The glass seems to have
a blue tint. There is some oil on the aperture blades and they stick a bit. Is
this lens worth the trouble of servicing or should I pitch it?