Nikkor 50mm f/1.2 Test Shots
I don’t often shoot near the 50mm focal length; I am normally above or below that focal length. I do have a Nikkor 24-70mm f/2.8 that covers this focal length when needed. However, lately I have an increase need to photograph low light events, and have been accumulating fast primes. Therefore, last week ordered from B&H a new Nikkor 50mm f/1.2. This nicely complements my Nikkor f/1.4 primes (105, 28, 24).
Today I was doing some resolution testing of this lens on my D850. I found the lens has highest resolution at f/4 and f/5.6. I am inserting below two versions of each of two photographs, one photo taken at f/4, and one taken at f/5.6. The first version is of the original, not cropped, image. The second is a 100% cropped version of that same original.
I was pleasantly impressed with the resolution of this still-in-production old lens.
I also have this old lens. I concur that the sharpest is f/4 to f/5.6 on a D850 or Z7. It also has some crazy effects wide open - definitely not sharp but interesting nevertheless. I also find that f/5.6 is the sharpest for most of my Zeiss and Nikon prime lenses and have seen that for the past few generations of cameras.
I also very much like the Nikon AF-S NIKKOR 58mm f/1.4G Lens which I have used a lot for shooting in 1:1 (square) aspect. It is one of my go-to lenses for landscape work. It's a really nice lens and for me that focal length is great for square.
I found with the 50mm f/1.2 that a slight amount of tweaking in Capture One results in decent final images even wide open. Here are three images taken at f/1.4, f/2.0, and f/2.8.