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Testing Macro Diffraction and Bokeh of the Nikon Z MC 105mm f/2.8 VR S


Shortly after taking supply of the brand new Nikon Z MC 105mm f/2.8 VR S lens, I made a collection of pictures to check its diffraction and bokeh traits utilizing the 45MP Nikon Z 7II digital camera in a real-world state of affairs.

After manually focusing the lens, I locked focus and made a collection of exposures. All exposures had been made in aperture precedence with the digital camera set to ISO 64. The digital camera was mounted on a ProMediaGear TR344L tripod with a Actually Proper Stuff BH-55 tripod head.

The 14-bit losslessly compressed NEFs had been processed in Seize One Professional 21, and the composite full-frame + full decision cropped photos had been created in Adobe Photoshop CC 2021. The cropped views are roughly centered on the a part of the flower I centered on.

At regular focusing distances, the f-stop scale runs from f/2.8 to f/32 however with macro-capable lenses at very brief camera-to-subject distances, the utmost efficient f-stop will get smaller. On the distance I centered for on this collection, the utmost efficient f-stop decreased (from f/2.8 to f/3.3) as did the minimal efficient f-stop (f/32 to f/40.)

The f/cease readings are from the digital camera settings EXIF information.

f/3.3
f/4
f/5.6
f/8
f/11
f/16
f/22
f/32
f/40

I used to be pleasantly stunned to see how sharp the lens might render element right down to the efficient aperture of f/32, however even at a average print dimension like 10×15, f/40 stays usable. Normally, lens decision actually begins to collapse by f/16 or f/22, even with different high-quality macro lenses I’ve used.

Bokeh, the transliteration of the Japanese language time period for a way a lens renders out of focus areas, stays easy all the way in which right down to f/32 however begins to get a simply little uneven at minimal aperture. However what if you’d like even better depth of subject? It’s worthwhile to use a computational images approach referred to as “focus stacking.”


In regards to the writer: Ellis Vener is an expert photographer primarily based in Atlanta, Georgia. The opinions expressed on this article are solely these of the writer. You’ll find extra of Vener’s work on his web site, weblog, Fb, and Instagram. This text was additionally revealed right here.



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