Taken on Ilford Delta 100 with very sloppy focus and framing – I do not have a good feel for the DOF with the Lubitel, which is shallower than similar framing with a 35mm camera (obviously!).
The “flare” in the top left of this image is nothing to do with the lens, but rather the result of unloading the film. Unfortunately, the Lubitel film winding mechanism is not very reliable and can jam without the film fully wound on to the take-up spool. Unloading the film in this case is tricky, as it tends to unspool slightly as you open the back and try to recover things.