Schneider Optics AQUAMARINE 1.3" lenses feature a robust metal body and solid mechanical design built to withstand harsh environmental conditions. They also feature a precise focusing via fine internal thread, a unique, robust focus lock, and a click-stop free iris setting / iris lock. They are visibly corrected and broadband coated for use in the 400-1000nm (Visible through Near IR spectrum) range.
AQUAMARINE lenses were previously named Xenoplan.