My review of the Nikon Z7 is in full swing, though I’m spending a lot more time evaluating/publishing than enjoying the gorgeous fall season and weather.
This page shows pairs of images shot at low shutter speeds with IBIS (Vibration Reduction) on versus off. IBIS is critical for slow lenses like the Nikon NIKKOR Z 24-70mm f/4 because it allows greater handheld flexibility when the light is relatively dim, e.g., near dawn or dusk.
This page also shows that IBIS is highly effective with Zeiss wide angle lenses, like the Zeiss Milvus 25mm f/1.4.
With full-res images and crops (four examples).
Below, a blurred image shot without IBIS at 1/15 second.
Below, Numerous freak rock slides wiped out big chunks of aspen in Lundy Canyon, sometime in the winter of 2017/2018. Thick layers of large rocks with mud made a slurry that wiped out and buried things; this slide is one of the larger ones, the next image is one of the smaller! Having visited Lundy Canyon for 20 years, I’ve never seen anything remotely similar in scope and sheer destructive power. What was good topsoil (for this altitude) is now jumbled rocks.