Today I finally got my Homrich 4x5 enarger mounted to my benchtop, and while giving it it's first use, I found the exposures to be way too short when enlarging to 8x10. I had to stop the lens down to f22 to get a time remotly usable, and even then I wasn't getting anything longer than 5 seconds without filters, making dodging almost impossible, along with fine tuning the time to any real degree. The previous owner fitted a dimmer switch to the baseboard, which I'm not using because it won't fit in my darkroom, but I was wondering if adding a dimmer stitch between the timer and the enlarger would be problem free. The enlarger's a condensor, and really nothing to it but a bulb and cord. I'm no wavelength wizz, so would a dimmer change things around too drastically to get consistant results? I'd rig the dimmer up to a slightly larger knob, with notches around as to keep track of the settings, but would contrast etc be consistant throughout the degrees of brightness?