Hand holding and slowly rotating a camera lens

hand holding camera lens cinematic bokeh foreground background slow motion showcasing black equipment sigma art nikon fmount caucasian filming photography focal length aperture zoom prime wideangle macro fisheye image stabilization autofocus manual focus depth of field vignetting distortion chromatic aberration optical quality image sharpness filter thread lens element diaphragm perspective control lens construction angle of view lens speed hood mount coating metal compression flare