D12 F20.7 Diameter 12mm focal length 20.7mm optical glass lens Sent E-mail INQUIRY DETAILS D12 F20.7 Diameter 12mm focal length 20.7mm optical glass lens ←[Previous:D12 F24 Diameter 12mm focal length 24mm optical glass lens] [Next:D12 F20 Diameter 12mm focal length 20mm optical glass lens]→ RELATED D15 F20 Diameter 15mm focal length 20mm plano convex lens D12.7 F63 Diameter 12.7mm focal length 63mm optical glass lens D25.4 F50.8 Diameter 25.4mm focal length 50.8mm plano convex lens D18 F36 Diameter 18mm focal length 36mm plano convex lens