No. The goal of the flex body is to have tilt/shift. (And even more so with the Arc body).C) can this combo emulate a flex body which at first glance looks like a sophisticated system for high detail closeup work?
Also note that for near the price of one of those extensions tubes, you can have a 150mm portrait lens, or a 120 Makro for not much more.
I used the 135/5.6 Makro-Planar, with the bellows, on the job for many years. It was superb for close-up work. But the focus rack on the bellows is stiff, fine for macro work but not the quick focus of a helical. You'd want easier focusing for portraits. It was also awkward to hand-hold (I never did shoot with it hand-held).
The 150/4 Sonnar (an older chrome one) that we also had was a far superior lens for portraits.
Resolution, well the 135 is extremely contrasty and has very high resolution; I'll just leave it at that.
If the the focus rack on the bellows or any sliding system of a (LF-) camera is getting stiff, too stiff, then clean it with some wash gasoline (the one used in the household to clean fat stains from clothes (also called C7-C9 or cleaning benzine?)).
Then lube it (sparingly) with Ballistol gun oil, this will get into the suface structure and will not stick and 'dry' clean.
If it gets stiff again, put some fresh Ballistol on and wipe it off to solve and clean away the old, and lube again.
Don't use Ballistol inside a closed optical system as you don't know if the fumes of this (mineral based-) oil will deposit on the optical surfaces.
Ballistol is good to maintain the bellows also (and the leatherette, neck strap, bayonet mount, camera bag zipper and locks, ball head, tripod locks, enlarger column and knobs and whatever you can tink of...)
PS: to be done on your own risk ofcourse...
The problem with Ballistol is that it smells like someone who doesn't bathe very often - kind of a body odor smell. And I think it off-gases too much to be used anywhere near a lens.
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