"Maxime, many professionals still use them to stabilize their video and still cameras on all sorts of moving platforms.  Here's an example:  http://www.heliphoto.net/services-video.php Kenyon Labs is a major supplier to…"

"Right, but the question (I think) was whether there are applications where MEMs gyros won't perform as well as mechanical gyros.  And, why."

"The spinning mass of a mechanical gyro resists movement of the object to which it is attached.  Its response is instantaneous.  A MEMs gyro simply provides the information to a stabilization system that then has to react to…"

"Yes, stabilizing a camera."

"Oyvind, Yes.  I'm salivating! - Don"

"Hi Oyvind, I use it for measuring animals on the ground, or in the water, with high precision. I use an old Honeywell RT now in full-size aircraft (up to 400 meters) and depend on GPS and pressure sensor for my UAS work (up to…"

"Uyvind, My interest would be for precise AGL measurement for photogrammetric sampling.  Altitudes up to 100 meters;  1% (or better) accuracy; weight < 300 grams; for photogrammetry from UAV. Also, altitudes up to 400…"