Just out of curiosity, does the *istD have a matte focusing screen? Has anyone tried to add the ZX-M split screen to it?
t On 6/30/04 13:52, Jens Bladt wrote: > www.dpreview.com states as qouted below, that the AF is rather slow, you > must push down the biult-in flash maunally (AF assist) before takeing the > picture, if yoy don't want ti use flash light, and that the AF assist light > may require more than one attempt before focus lock is achieved. > Is this really the case? If so, not very flattering, is it? > > > www.dpreview.com testing *ist D; > > > > Low Light Auto Focus > This test is designed to measure the minimum amount of light under which the > camera can still focus. The focus target is our lens distortion test chart > (shown here on the right), camera is positioned exactly 2 m (6.6 ft) away. > > Light levels are gradually dropped until the camera can no longer focus. > Before the shutter release is half pressed the lens is manually focused to > the closest subject distance (typically 0.5 m) to "throw the focus out". > This test target is the optimum type of subject for most AF systems (as it > has a vertical line at its center). > > AF assist via flash > > The *ist D implements an AF assist function using the built-in flash (this > is much the same as Canon's EOS 10D). To use the AF assist feature you must > first pop-up the built-in flash unit, upon half-press of the shutter release > the camera will strobe the flash in order to illuminate the subject. In our > tests the *ist D required two attempts to get a good lock and the entire > process (from half press to locked) could take up to three seconds. > > The other disadvantage is that there appears to be no way to stop the flash > from firing once up so you can't for instance use the flash for AF assist > and then take a normal long exposure (without pushing the flash back down > again manually). > > Results without AF assist > > ... > > As expected faster lenses performed better (because more light is getting > through to the AF sensor). In low light situations the *ist D's AF system > did seem to take a few spins of the AF motor to get the lock just right, > thus the 2.5 - 3.5 seconds to focus. > > > > Jens Bladt > mailto:[EMAIL PROTECTED] > http://hjem.get2net.dk/bladt > > > > >
