In article , Incubus
wrote:

You should give a try to IBIS. It means for instance that during
the blue hour you can shoot handheld. Allows you to quickly move
around and try different positions, without every time having to
set up a tripod. This matters, because depending on the season
and latitude the blue hour can be quite short (often only 20
minutes).

IBIS also helps a lot in non low light situations, because it
stabilises the sensor and substantially reduces motion blur
issues.

Then, the Olympus E-M1 has a flip screen, but I rarely use it

IBIS was the one reason I had a look at the Pentax K1 and K1-II - the only
DSLR
with IBIS, to my knowledge. I get the same results with my VR lenses but
being
able to have pretty much the same thing with all my older lenses would be
nice.
It's one feature I wish Nikon would put in their full frame DSLRs. Of course,
it would probably cannibalise sales of their modern F-mount lenses.

in-lens is more effective for longer focal lengths, where it's most
needed.
in-camera works for any focal length, but is less effective at longer
focal lengths.