|Zeiss Ikon Nettax|
image by Huub L (Image rights)
See also the 35mm Nettax (Zeiss Ikon 538/24).
The Nettax (Zeiss Ikon 513/16) is a 6×6cm folding camera made by Zeiss Ikon in 1955-57. It is essentially a Nettar with a built-in uncoupled selenium exposure meter. Novar f/4.5 75mm lens in a Pronto shutter.