Rolyn Microscope Lens - Lot of 17 13x N.a.0.35 20:1 / 3x 20:1 N.a.0.35This item is sold AS IS. No returns or exchanges are accepted. Condition For parts or not working Description includes: 13x N. A. 0. 35 20: 1 3x 20: 1 N. A. 0. 35 1x 20: 1 N. A. 0,35 20: 1 We are unable to test these lenses, for this reason, we are selling the unit AS IS. Unable to test further, may have unknown issues we are not aware of. Units have scratching on glass and are in poor condition. Sold AS IS for parts repair only. See all item photos