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You are here: Home / GFX 100 / Fuji 45-100/4 vs 24-70/2.8 Nikkor S, Siemens star, part 3

Fuji 45-100/4 vs 24-70/2.8 Nikkor S, Siemens star, part 3

February 28, 2020 JimK Leave a Comment

This is part 3 of a comparison of he Fuji 45-100/4 on the GFX 100 with the 24-70/2.8 Nikkor S on the Z7  at 45mm, 63 mm, and 100mm for the Fuji lens, and 35mm, 50mm, and 70mm for the Nikkor. This post will look at the 70/100mm shots.

Here’s the test scene, with the 45-100/4 on a GFX 100, and set to 100 mm and f/4:

45-100/4 at 100mm, center, f/4

Target distance was 14 meters.

Test conditions:

  • The heaviest RRS legs
  • Arca Swiss C1 head
  • ISO 100 for the GFX 100, and 64 for the Z7.
  • Electronic shutter 1/10 at f/4, 1/5 at f/5.6, and 1/2.5 at f/8
  • 2-second self-timer
  • AF-S, medium spot size
  • 3 sets of shots at each test condition
  • Developed in Lightroom
  • Picked best shot of each test condition
  • Sharpening amount 20 radius 1, detail 0 (much less sharpening than the default)
  • Adobe Color profile
  • White balanced to grey background

We’ll look at some tight crops at about 130% magnification for the GFX 100, and enough more than that to make the angle of view the same for the two cameras.

In the center:

45-100/4 at 100mm, center, f/4

 

Nikon 24-70/2.8 Nikkor S at 70mm, center, f/4

The Nikon has less resolution and more aliasing. Blame the sensor, not the lens.

45-100/4 at 100mm, center, f/5.6

 

Nikon 24-70/2.8 Nikkor S at 70mm, center, f/5.6

Same.

45-100/4 at 100mm, center, f/8

 

Nikon 24-70/2.8 Nikkor S at 70mm, center, f/8

Same.

In the upper-right corner:

45-100/4 at 100mm, corner, f/4

 

Nikon 24-70/2.8 Nikkor S at 70mm, corner, f/4

Here is the only case where the light falloff of the Fuji lens is similar to that of the Nikkor. The Fuji resolution is much better.

45-100/4 at 100mm, corner, f/5.6

 

Nikon 24-70/2.8 Nikkor S at 70mm, corner, f/5.6

Now the Fuji has less corner falloff than the Nikkor. It looks like the Nikkor might have similar resolution if the sensor could keep up.

45-100/4 at 100mm, corner, f/8

 

Nikon 24-70/2.8 Nikkor S at 70mm, corner, f/8

Now it looks like the Nikkor is actually sharper. However, that extra sharpness is mostly generating aliasing.

I see no reason to revise my earlier conclusions:

  • The Nikon 24-70/2.8 Nikkor S is a heck of a lens that needs a 100 MP body to really shine.
  • MF is once more better for even illumination.

Feel free to mix and match the f-stops if you want to look at equivalent stops.

 

 

GFX 100, GFX 50S, Nikon Z6/7

← Fuji 45-100/4 vs 24-70/2.8 Nikkor S, Siemens star, part 2 Field Curvature on the Fuji 45-100/4 →

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