As another DLC45 owner, I'd like to expand on a couple of earlier comments. First, occasional adjustments: AFAIK, everything can be done with three hex keys. I have had a couple of the adjustment knobs loosen, it was simple to re-tighten them with the smallest hex key. Keith mentioned (at PhotoPro) that some people over-tighten the focus locking levers, which ultimately loosen the mechanism. On more recent DLC45s, Keith has installed little pins which prevent overtightening; he will install these on any DLC returned to him for CLA. Rigidity: I've never noticed any functional lack of rigidity (i.e. anything that moves will spring back into position when you let go, so doesn't affect the photograph). What can happen is that the locking levers for the back and front swing may not be fully tightened down; then when you put in the film holder, or reach around to cock the lens, you can make the standard shift. But a bit more pressure on the locking lever eliminates the problem for me. As I write this I see a certain "problem": you aren't supposed to overtighten the focus locking levers, but you have to tighten the front & rear swing locks pretty tight, so I guess you develop a feel for it over time. Final thought: every camera is a compromise. My Sinar F was more rigid, but nowhere near as compact, and not as light, for carrying. My ZoneVI/Wista was lighter, but didn't have as much bellows extension, and felt more fragile. So for my purposes, the Canham is the right compromise; everyone has to make that analysis for themselves.