[Brightcolours]

If "more suitable" means "close-ups", I'd go with higher magnification (i.e. Sigma DP3, 1:3, while Nikkor 85mm f 1.8G is just 1:8) for flowers.

 

A.

 

P.S. I am thinking... If we know FOV for infinity, and magnification for MFD, isn't that enough data to calculate FOV at MFD for that particular lens?

No, at least not exactly. You can not be sure about the focal length at MFD nor FOV at MFD (those are not linked 1 on 1).

It is very difficult to determine the actual focal length... And even if the focal length stayed constant, you would get a more narrow FOV at MFD than at infinity...