Abus tv8555 1 3 ir vario lens 2 9 8 2mm manual aperture abus tv8555 p the abus tv8555 1 3 ir vario lens 2 9 8 2mm manual aperture is a very important component of your camera here you regulate the incidence of light on the camera s ccd and thus ensure an optimal exposure of your pictures p p all lenses have a standard mounting thread so you can easily mount cs mount lenses on any camera the aspheric lenses ensure especially high quality pictures and prevent poor focusing at the edges