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Nikon Z7 Aperture/Lens Diaphragm Behavior While Viewing/Focusing
This page discusses how the Nikon Z7 behaves with respect to aperture behavior when viewing vs when focusing vs when shooting.
See also Autofocus Accuracy: Zone of Focus Error, Example and Mitigation and Autofocus Accuracy: Pinpoint AF vs Magnified Live View Reference.
There are several relevant camera behaviors that a photographer must know in order to achieve optimal sharpness, particularly when the placement of the zone of focus relative to the desired point of focus get sloppy.
- At which aperture does the camera show the live image in the viewfinder? It might be wide open, it might be the shooting aperture, it might vary by scene brightness, it might have a fixed limit, e.g., f/5.6.
- At which aperture does the camera focus? For example in an f/1.8 lens with the camera set to shoot at f/8, does the camera focus at f/1.8 or or f/8 or something else?
- Does the foregoing change under different conditions, such as very dim light or very bright light?
- Are there any camera settings which control or affect the behavior?
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Diglloyd Guide to Mirrorless offers comprehensive integrated coverage of most APS-C and full frame mirrorless cameras and lenses.
Special emphasis is placed on Sony full-frame, including Sony lenses and the high performance Zeiss Batis and Zeiss Loxia lenses plus Rokinon/Samyang and others. Fujifilm X, Olympus and Panasonic M4/3, Sigma dp Merrill and dp/sd Quattro are also covered in depth. Years in the making, it offers a wealth of material for choosing and using a mirrorless camera.
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- Aperture series from wide open through stopped down, showing the full range of lens performance and bokeh.
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