Now we see through a glass, darkly...
- Apr 5, 2016
Myself I'm looking for a FF Canon body to replace my 5D3. I am interested in better noise control, especially color noise in low light. I do not mind a large file to work with as a landscape, macro, abstraction and nature shooter I don't take a lot of shots and am methodical with my setup and settings. It's the sensor specs and detail potential that interest me. I know that if this isn't the one, I have the R, 5DsR and 5D4 to take a serious look at with a lot less investment. The reason I didn't bite the bullet on the R is ergonomics, it just didn't do it for me when I borrowed on for an afternoon. . I could adapt if needed, it just takes time, right? But I'm a patient person and can wait for the right body. All in all, I mostly want my IQ, as for the other stuff, whatever. A good fit in my mitts, clean files and I'm a happy man.
For your stated purposes, the 5D Mark IV was a significant improvement over the 5D Mark III. You probably should have upgraded in 2016.
Dynamic range: 5D Mark III vs. 5D Mark IV
Read noise: 5D Mark III vs. 5D Mark IV