Maybe you accidentally put one of the negs in the scanner upside down. The first one's pretty symmetric...
I also note the notch in the film-gate on the top-right of the first one is not present on the second though it could be present/invisible at left. I reckon one of them is scanned backwards and it's a winding-on issue as described above.
Haaa, No. This looks like San Juan Bautista... Both images are "right-reading".
I wonder if the tripod could possibly have been jarred. Again just before winding on but not the winding that created the streak - the jarring of the camera on tripod.
There were just quickly scanned to show the problem so they could have been in any direction. Also didn't blow off any dust :-)
Originally Posted by polyglot
Yep, San Juan Bautista
Originally Posted by Bill Burk