Thing is Wayne we are finding out even on a tripod with IBIS on it has no ill effects . I tested it as well as Mike and we are seeing no difference . My gut feeling is once IBIS senses no movement it just goes to rest.
Our tests are in the A7rII Batis 25, 85 and 35 1.4 thread
http://www.getdpi.com/forum/sony/55...mm-batis-85mm-sony-35mm-1-4-system-tests.html
Guy, Just a point to consider....... the 35 f1.4 and the 25 Batis are non-optically stabilized lenses ..... only the 85 Batis has image stabilization (OIS) but not defined as Sony OSS in it's nomenclature and could very well be a Cosina manufactured lens by recent web information about who warrants it in Japan.
Thus 2/3 of your testing had only the IBIS system of the a7rII involved without a in-lens stabilization system as well...... the 85mm could have a completely different stabilization (than say the 16-35 OSS or other Sony lenses with OSS) or a improved shutoff when connected to a IBIS body which the older Sony OSS lenses may not have as they were developed prior to bodies with IBIS. I am no engineer or scientist but your test could be a apples to oranges type comparison to what I experienced the other day. I have not and probably will not do any further testing as that stuff is just not me and my time is limited when I am out at a location. I get B slapped once and learn from it and take steps not to be B slapped by the same thing again
I know how to avoid this and will..........
As I have stated before all my other bodies with stabilization have only used
unstabilized glass and I have never had a single issue with leaving the stabilization on on a tripod. The other day I had
a OSS lens on a IBIS body with the stabilization system on auto and when I picked up the tripod/camera combo lifted it/ turned it 180 degrees/ quickly framed and shot using a IR remote I lost most of those shots without any definable location for the AF point definable as the image was so blurred. I do remember that the lights under the bridge and across it showed a diagonal movement in a 7:30 to 1:30 direction FWIW and the exposure was .5 a sec or longer for those bridge shots and the sunrise shots were higher shutter speeds as I was shooting in A mode. When I reposition the tripod back out to the east and took a longer period from moving to actually taking the shot the shots came out fine.
Lesson learned for me at least........ don't be lazy with this system and turn the friggin IBIS off when on a tripod as the manual states because it has bit me once
Very easy and quick to accomplish now with the down button assigned to IBIS on/off a Cindy suggested: thanks Cindy!