Hum… I may be wrong about that. I remember I read a long time ago that Spielberg used an experimental digital camera to shoot the beginning of Private Ryan, but I cannot find sources about that.
I sincerely doubt he used a digital camera at that point in time. It’s 35mm with the protective filters peeled off the lenses and the shutter angle changed from 180° to 45-90°. This creates the staccato effect.
Source: https://www.dga.org/Craft/DGAQ/All-Articles/1103-Fall-2011/Shot-to-Remember-Saving-Private-Ryan.aspx