The wheelchair I use is now close to 20 years old, but it has been repaired several times. It weighs nearly 400 pounds with part of that weight being a great suspension. I can jump a 5 inch gutter with it, which makes it truly great in my book. But the springs that make that possible make it more like a rocking chair than a stool. It can easily be tilted back and forth and even a little side to side. That means I cannot get a good shot mounted from it.
John - I'd argue that the batteries and motors of most cordless drills can grind out their own worthless gear trains within a few months if serious torque is involved. We had the biggest repair facility in the area before a bunch of us retired. But I sold the best of the best of em, so know the difference. Well, I didn't sell aerospace versions, but have certainly had them in my hands; those kind of cordless drills can cost up to $8000 apiece. What you might get a kick out of is how I took a $25 scissor jack and made a better router lift for my Festool plunge router table than hundreds of even thousands of dollars of an official lift system would have gotten me. It's faster and more accurate too. I've got a phD in jerry-rigging.
I have the Pentax 67II with the older 300mm lens. I have always used my Manfrotto tripod with this gear. I have the 455B legs with the 141RC head. That head has the quick release and is very stable. Only thing is this combo is years old. The 055 would be my choice today, but the head is more complicated, as I don't see a modern version of the 141RC. Maybe used somewhere?
And Sirius, once again, what you describe is not necessarily adequate for a P67 with a long lens. I doubt it. Handling a 4x5 camera is a far easier task than this one, when it comes to this tripod stability. Even my mid-weight Ries wooden tripod is insufficient. You're trying to compare apples n' oranges. Hassie isn't P67. I know I'll get a lot of flack, because people seem to be successful doing this or that. But I'll bet if they did it right, and then compared the results under a good loupe, they'd see a real difference.
OK, Sirius, I will show my cards. I have that exact tripod head (under the previous Bogen label) and have used it on a FAR more stable tripod than the one you'll talking about, and it works OK with my 300 P67 lens, just OK. I do in fact get demonstratively sharper images via my method, bolting the camera and lens directly atop a large tripod platform top. This becomes particularly evident when using the especially well corrected EDIF version of the 300. Just depends on how critical you need your exposures. So, NO, I was not just firing off a comment. I've tested these things very very methodically.
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