The Zenit-5 is a modification of the Zenit-4 with a built in motor drive and rechargeable batteries. It is labeled "Zenit-5". The base plate of the camera is a little higher to make space for the batteries and there is a jack in the baseplate for the recharger. Because the camera was motor driven it did not have a film wind lever, however the film reminder knob was attached to function as an emergency film advance. There are no differences other than these. These cameras will normally be found with the batteries removed because they leaked. It is not uncommon to find that all the connections for the batteries have been removed. Compatible with the Voigtlander Bessamatic lenses
The last picture shows the Zenit-5 with the charging unit attached. This version of the camera also has strap lugs. David Tomlinson.