The Agfa and Polaroid lenses could have a distinctive quality, especially if they are uncoated. The main issue could be lack of covering power, especially with the 90mm, which Dan mentioned. Stopping down to near to the smallest aperture could help, although diffraction may cause an overall softening. However, many years ago when I was a college student I occasionally used an uncoated Wray wide-angle, a 89mm I think, which had no shutter, with a Gandofi 5x4 with bookform dark slides. The Wray had to be stopped fully down for exterior photography, to enable a guestimation of 1/4 sec to be given by uncovering the lens! The sharpness was surprisingly good, even into the corners, and the image had a "creamy" quality unobtainable with modern lenses.