<p>@John H.: My reason for doubting your analysis is that I was shooting in straight daylight at probably between f/8 and f/16, depending. On the Mamiya my shutter speed was set to 1/500 for most of the day and since both the Olympus and Yashica are aperture priority, I can't be fully certain. These are just a sample set from the 90+ shots I got developed, but the effects are consistent across 4 rolls of film.</p>
<p>@Stephen Lewis: I'll try keep that in mind, but, the effects are pretty uniform across several rolls. Please see my above reply to John re: Aperture's and Shutter Speeds.</p>
<p>@Les Berkley: Using a metering app on my iPhone that has been said to give good results. Furthermore, I am familiar with shooting in digital and I have a general sense of what exposure seems reasonable.</p>
<p>@Jochen Schrey: Absolutely! Different rolls bought from different stores, both in person and online. Since everything except for Agfa is professional grade I throw those into my fridge when not in use. I also had a lab do everything - no C-41 processing for me at home.</p>
<p>I really want to believe that this is a problem with the scanning. The effects are similar across 3 cameras AND the Yashica and Olympus are aperture priority cameras.</p>