The Tamron 23FM16SP is a 16mm 3 megapixel lens with a M30x0.5 filter size.
The Tamron 23FM SP 2/3" 3MP Series Lens family features for up to 2/3" sensor sizes, optimized for 4.0µm pixel size (3mp), very close working distance (mod), very low distortion, screw locks, click stop iris.
Manufacturer: Tamron Manufacturer PN: 23FM16SP Focal Length: 16mm Quality: 3MP Sensor Size: 2/3" Lens Mount: C F Stop: 1.4 M.O.D. (m): .15 Dimensions (LxW mm): 34x40 Iris type: smooth Filter size: M30x0.5 Distortion: call Resolution: call