Lens Not Attached : MANUAL LENS need you to enable "M mode " or "Release without lens" in the setting of camera
Meike 10mmf2.0 lens structure is 12 groups 15 elements, makes the lens capable of producing sharp image with low distortion
Prime lens is small and compact build, offers a focal length equivalent to Minimum focusing distance of 0.3m, APS-C Visual angle:diagonal 10.7° horizontal 96° vertical 72°mm
Metal body great build quality with all metallic construction, making the lens solid