A lot of Rolleikin sets have no 35mm counter knob today, they were attached to the camera and left there for most cases; other sets like the Rolleikin II "C" does not include the counter knob because they are for cameras provided with 35mm counter knob from factory, like the 2.8 models "C", "D" and "E". I found this interesting video showing a way to install a Rolleikin without counter knob: http://www.youtube.com/watch?v=Bvj_qbVLYqA Carlos Yahoo! Cocina Encontra las mejores recetas con Yahoo! Cocina. http://ar.mujer.yahoo.com/cocina/ --- Rollei List - Post to rollei_list@xxxxxxxxxxxxx - Subscribe at rollei_list-request@xxxxxxxxxxxxx with 'subscribe' in the subject field OR by logging into www.freelists.org - Unsubscribe at rollei_list-request@xxxxxxxxxxxxx with 'unsubscribe' in the subject field OR by logging into www.freelists.org - Online, searchable archives are available at //www.freelists.org/archives/rollei_list