The Tamron M118FM50 is an 6 mm, 1/1.8" format lens with a M25.5x 0.5 filter size, -0.05% distortion, 120 resolution. The Tamron M118FM50 and the Tamron 1/1.8" M118 Lens family features C-mount for up to 9 mm image circle, 120 lp/mm, compact size, and close working distances.
Manufacturer: Tamron Manufacturer PN: M118FM50 Focal Length: 50mm Quality: 2MP Sensor Size: 1/1.8" Lens Mount: C F Stop: 2.8 M.O.D. (m): .2 Dimensions (LxW mm): 29x62.6 Weight (grams): 52 Iris type: smooth Filter size: M25.5x0.5 Distortion: -0.05% Resolution: 120