Built-in Lenses

• Many Sony video and still cameras over the years have, and still do, come with built-in lenses, each typically unique to that particular camera model. Built-in Sony lenses come featuring various zoom capabilities; the first Sony video camera, made in 1981, included a built-in large-aperture lens with 6X optical zoom.
  
  

Mavica Lenses

• A couple of early Sony Mavica cameras, which recorded still images onto 2-inch floppy disks, came with sets of model-specific but interchangeable lenses. The first Mavica, released in 1981, featured three interchangeable lenses: a 25mm, 50mm and 16mm to 65mm zoom.
  
  

Sony Alpha

• Sony Alpha is a line of digital SLR cameras and compatible lenses, which originated in design from Konica-Minolta's film and digital SLR cameras and lenses (also named "Alpha"). As of 2010, Sony Alpha makes a variety of zoom, fixed focal length, macro and teleconverter lenses, in addition to special top-of-the-line "G Series" and Carl Zeiss lenses, that all use the old Minolta "A-mount" system. Most old Minolta Alpha/Maxxum lenses will even fit on a new Sony Alpha camera.
  
  

Sony Alpha NEX

• In 2010, Sony released the Alpha NEX line of digital cameras and lenses, which feature very lightweight and compact designs. The Alpha NEX lenses use a unique "E-mount" system; however, Sony does sell an A-mount-to-E-mount adapter.