I scanned 2 strips of negative upside down. The good exposures were on 1 of those, so I dismissed that could cause the problem.
Here are 2 more frames, the garden doesn't have striations, exposure good, but a blob on the left upper corner, the other is an exposure with the lens cap left on, yes I still do that from time to time.
Originally Posted by Malcolm M
You didn't load the film back to front, or anything silly like that? The Canon logo on the strap is reversed.