OK, I asked about this before but did not have a scanner at the time. In the prior thread, we decided that the problem was underexposure (i.e. I screwed up again). I was going back through my pile of transparencies and found an example. Here are scans of the suspect...The first image is a detail from the lower right corner of the full frame scan. Notice that the unexposed area in the film holder rebate is also the same magenta color as the deep shadow areas in the bushes. I'm thinking that this is a processing issue....

Can anybody tell me for sure if this is an exposure problem or a processing problem?