G311377322,BICONVEX LENS; N-BK 7; D=12.5; F
G311377329,BICONVEX LENS; N-BK 7; D=12.5; F
G311377525,BICONVEX LENS; N-BK 7; D=12.5; F
G311378000,BICONVEX LENS; N-BK 7; D=18; F=1
G311378322,BICONVEX LENS; N-BK 7; D=18; F=1
G311378329,BICONVEX LENS; N-BK 7; D=18; F=1
G311378525,BICONVEX LENS; N-BK 7; D=18; F=1
G311381000,BICONVEX LENS; N-BK 7; D=12.7; F
