Toni,

the J12 won´t work on the CL/CLE. IIRC the CLE meter reads the light reflected from the shutter blinds and the rear element of the J12 will cover that.

The others (but the 20mm Russar) will work just fine with the CL and CLE... usually you´ll get the Summicron/Rokkor 40mm in a kit with the body, it´s a nice and compact lens.