1Prime lens has strong focusing ability, focusing speed and stable image quality, suitable for capturing pictures of moving objects. 2Manual aperture, aperture can be fixed and locked, more convenient to use. 38MP high definition lens, provides very accurate focus, delicate images, very slight graininess. 4Lens with low distortion, high compatibility, can adapt to most security cameras. 5Easy to install and disassemble without affecting the installation and use of other accessories of camera. Item Type: Camera Lens Material: Aluminium Alloy Color: Black Resolution: 8MP FL: 2.5mm Relative Aperture: 1:1.6 Image Size: 6.4 mm Mount: CS Mount Field(D x H x V): 190x190x190 M.O.D: 0.3m Flange BFL: 12.526mm BFL: 5.99mm Aperture: ManualAperture Working Temperature: -20-60 1 x 8MPPrime LensPlease note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.