Welcome aboard. I have the same enlarger. They are fantastic. I use a Componon S 2.8/50 and have a 100mm 5.6 Componon S and an 150mm El Nikkor 5.6. The latter 2 are for sale. If interested in either or both let me know. Don't waste that great machine by using inferior lenses. Good luck and if I can be of any help, just let me know. Don