D12 F15 Diameter 12mm focal length 15mm optical glass lens Sent E-mail INQUIRY DETAILS D12 F15 Diameter 12mm focal length 15mm optical glass lens ←[Previous:D12 F20 Diameter 12mm focal length 20mm optical glass lens] [Next:D12 F12 Diameter 12mm focal length 12mm optical glass lens with coated]→ RELATED D12.7 F38 Diameter 12.7mm focal length 38mm optical glass lens D15 F-70 Diameter 15mm focal length -70mm plano concave lens D12.5 Diameter 12.5mm concave lens D12.7 F48 Diameter 12.7mm focal length 48mm optical glass lens