Ok, first I blame each and every one in this section, LOL, for my recent purchase of my recently acquired F4 body. I am half way through my first roll of Tri-X 400, and have some observations. I had forgotten how much fun photography can be. Like most of us here, I made the transition to digital a few years ago, and marveled at the instant feedback and volume of shots I could "capture." I have shot a mere 18 frames with this F4 body, and had an epiphany. I really enjoy shooting with this body. Strangely, the F4 makes time slow down. I find myself more involved and focused on the composition of the 18 shots I have taken, what the meter is telling me, thinking about the adjustments to shutter, f stop, ISO. However the greatest joy has come from the liberation from the histogram on my D300. The need for instant feedback. I watch with great anticipation, the counter marching along, frame at a time, and wonder what I will be rewarded with when the film comes back from the lab? Man, I am hooked.