260 full aperture pieces in a wooden tray with a lockable leatherette carrying case. This trial lens set consists of: plus (+)/minus (-) sperical lenses (one pair of each) ranging from 0.25 to 20 diopters. Plus (+)/minus … Continued
64 lenses in a wooden tray. The trial set consists of: Spherical lenses: plus (+) /minus (-) lenses (one pair of each) ranging from 0.25 to 6 diopters (48 lenses) in steps of 0.25 diopters Cylindrical lenses plus (+) / … Continued