On Wed, 29 Jan 2003 22:30:54 -0500, James Asherman <jimash at optonline.net> wrote: [...] > > 4) Optical Image Stabilization >> >> Here, the camera uses a lens with a moveable optical group or prism . > > The group/prism can be shifted to counteract the pointing jitter. >> Typically, sensors (like in method 2) measure the jitter and instead >> of electronically shifting the image, the optical group is physically >> shifted to bring back the image on the same position on the sensor. >> Because of the requirement to physically move the optical group, the >> dynamic response is limited to lower frequency movements and very high >> frequency vibrations are not well cancelled. However the image can be >> shifted by minute amounts (fractions of a pixel) before capture by the >> sensor and this will generate better image capture. Physically moving >> elements also consumes more power and is harder on the batteries. This >> setup doesn't require image sensors to be larger than the final image >> size. >> > > http://www.canondv.com/gl2/f_image_stabilization.html >> >> >> My understanding is that all consumer and prosumer camcorders that >> announce stabilization use the method number 2 because it is cheaper >> and gives good enough results. I only know of the Canon GL1 or GL2 >> class cameras that use method 4. > >I am already tired of this one but.. >VX1000 and TRV900 to my knowledge use type 4. TRV9 too. >type 2 appears to be the regular steady shot. >I think panasonic uses type1. blocky. > > >> But then again what do I know ... > >me either. >Jim [...] My old Sony TR101 Hi8 camcorder had Type 4 stabilization. -- Gordon Alley <*> <mailto:galley at texas.net> <http://galley.home.texas.net>