The Opemus is a good enlarger but for B&W I'd steer clear of the Color heads. Yes you can use it as a mulitgrade but the color head is heavier than the std head and I find it prone to act like a rocking chair where the std head feels a lot more stable on the column and using filters ain't a drawback to me. I gave my Opemus away when I became a father and since starting up I have been "stuck" with Durst enlargers
Best regards