I have an old pair of binoculars that was left to me by my grandpa. They are Minolta 10 x 50 Standard EZ. They have to be 15-20 years old and relatively good condition for their age. They have some superficial cracks in the casing and appear to be pretty dirty behind the lenses. Anyone know of a good shop that will clean and repair them? I was also considering buying a pair of vortex diamondback 10 x 50 if it would be better for me on the price.