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 D12.5 Diameter 12.5mm concave lens D12 F15 Diameter 12mm focal length 15mm optical glass lens D12 F25 Diameter 12mm focal length 25mm plano convex lens D12.7 F48 Diameter 12.7mm focal length 48mm optical glass lens