dynamic range

For university, we had to work out the dynamic range on a Canon 7D at different ISOs. I understand it all up until the last point after you put the photo in photoshop to find the pixel value. I don't understand how to count the stops between the lightest and darkest. Because obviously they're...

Tldr: see attached photos, Bride and groom will be at the window, very wide dynamic range - any suggestions ? ;-) Hi, My cousin and his fiance are getting married and having a small, intimate ceremony and dinner at the village hall near where they live. It's got a nice view, but its quite a...