I've run into an issue with tiling my transparencies together. I print out 13x19 transparencies (fixxons) from my inkjet printer. I overlap the printed areas of the film by about a 1/4" or so. Occasionally this line would show up ever so slightly when printing but it was never noticeable or much of a problem. I recently built a large vacuum frame for doing solar exposures (I'll post some pics of it when I get a chance, it's pretty cool), as a result I get better exposures with finer detail and all that. The problem is the lines where my films are taped together are now much more apparent. The overlapped section creates slightly heavier marks, and then there is a slightly blurred area right next to it caused by the film being layered over the next piece. I expose with the ink side of the film directly against the mesh/emulsion.
Are there any better ways to do this? I'm going to try reducing the opacity just a tad in the overlapping areas to see if that helps even out the marks. I wish there were a way to avoid overlapping the two pieces at all, but I can't think of a precise way to do this since I would have to cut the clear edge of the film off. Anyway, this is very frustrating, any advice would be appreciated.