Focus is not the issue here. The issue is coverage.
Any lens gathers light from a cone in front of it (angle depending on the focal length), and projects it to a cone behind it (angle depending on coverage). So long as the lens is far enough away from the film plane, there exists some plane in the real world that will be focused on the film plane.
While some care is needed to avoid accidental light leaks, light-proofing a container enough to safely store film or paper is not a colossal effort.
Something as simple as duct tape over a few suitably sized paper envelopes is easily more practical than lugging a Paterson tank.
Black construction paper can make envelopes, or use a maker to darken a ...
So, the Jobo tank looks like this:
Your streaks look to be identically spaced to the support beams on top and bottom of the holder. The horizontal development line looks to be where the water level sat most often.
Looks to me like not enough liquid was used in the development phase causing uneven and streaky development.
I have no clue how that is processed, but as a pure guess
& because answers in comments are frowned upon
I'd be looking at "clip dribbles"
It looks like they were hung upside down from a bulldog clip to dry.
They're strangely evocative, btw - I fully expected to see horses in at least one, & maybe a guy in flat hat & baggy trousers with ...
You have the changing bag and one envelope of paper. All you need is another light tight envelope or box, old cheap 4x5 film box from Ebay or thrift store or ? check with a local school or photo club for a free one.
You just change the paper in the changing bag, put the exposed one in old box and load the new one in the camera from the envelope. All of ...
The camera lens projects an image of the outside world on the surface of photographic film or digital sensor. The focal length of this lens is a measurement taken, lens-to-image, when the lens is focused on a far distant object (like a star). The focal length defines how big images of objects will be. The longer the focal length, the bigger they image.
The sironar is the oldest non-multi coated non-apochromatic lens of the group.
The Sironar – N and the Apo Sironar-N and are identical except for the barrel designation
the one you are listing as an Apo Sironar is the same thing as the Apo Sironar W.