Pentacon electric 1.8/50
|Pentacon 1.8/50 electric|
image by René Maly (Image rights)
This is the electric version of the Pentacon auto 1.8/50. For this one they reached back to the red paint again for the text and scale imprinting. In the background you can see the Praktica EE 3, it has the contacts which connect to the lens. These 3 contacts tell the camera the selected aperture, and allows it to function automatic in an aperture priority mode.
Other cameras that have the contacts for the electric series lenses are the VLC and PLC series.