The Beseler4x5 I have has an adjustable condenser and I have to crank that up or down to whatever format I'm in, 35mm, 6x6, 4x5, etc. Is there such an adjustment on yours?

My enlarger is wrapped up at a previous house, but I'll be moving it in the next few days. If the mystery isn't resolved by then, I could shoot some quick digital pics of the adjustment I'm talking about & post them.