
Before the mark IV, there was the mark III (now both cameras), before that there was the 6D, and even earlier than that there was the Nikon D3s and the Nikon D700 already on the first shot, DDs are wider and stretch better, functioning ISO is higher, exposure metering is more accurate, and there is no need in changing.

Canon EOS 60D: 18MP CMOS Digital SLR Camera Body - Your Next Photography Companion
125 Review

Discontinued Canon EOS 7D Digital SLR 📷 Camera Body Only with 18 MP CMOS Sensor
88 Review

Nikon COOLPIX L810 Digital Camera: 16.1MP, 26x Zoom, NIKKOR ED Glass Lens, 3-inch LCD (Blue)
95 Review

Canon PowerShot A480 camera, black
108 Review