I've got a deep, dark question for you DF/D4/D800 users and figured the talent and experience on this forum would shed some light to help. I'm working on a night photography project over the next six months and looking for a second camera specifically for high-res, high-ISO, pinpoint star photos. I've been using a d800e for the same types of images since it came out, and have had good results, but it is right at the edge of being too noisy, so I wanted to see if there was a better option at this point. I use a medium-format system for the rest of my work, so this camera would only be used for high-res, high-ISO, pinpoint star work with the one lens. I'm considering both the Df and Canon 6d. I could always just get a second d800e, but wanted to see if one of the others would work better for this job.
I need a camera that can shoot 15 seconds at ISO 6400 with the least amount of noise (I use 14-24mm Nikkor, usually at f2.8). I know both the Df and Canon 6d beat the d800e with lower noise at higher ISO, but I also need to make uprezzed prints in the 40x60 inch range. So the gist of my question is this - to make big prints (and high-res reproductions in books and calendars), am I better off starting with a native file with lower noise and lower resolution (Df/6d, more rezzing up required), or a native file with more noise but higher resolution (d800e, less rezzing up required)?
I've found reviews of the various cameras at high ISO to be of little use, so wanted to ping you guys to get your thoughts - any are most appreciated. Thanks!
Tim Ernst in Arkansas