I've always used cropped-sensor cameras, now I'm in the process of deciding for a full-frame camera. While I've read about the differences between them, I'm still getting my mind around this, and it just came to my mind a question for which I haven't been able to find an answer on the web.
In a full-size sensor camera, I wonder if its possible to set it in the way to obtain an image with the characteristics of a cropped-size one (image size, resolution, pixel area and so on).
The thing is that for my work (architecture), I might need to take pictures using both cameras and compare the luminous situation, if I get the full-size one I'll have to use my previous cropped size to do this comparison. However, I don't know if this comparison would be valid with two different cameras in terms of sensor size.
I found this similar question but still not 100% answering my question: Do full frame sensors gather more light than crop sensors?
I'd appreciate your opinion on this