Topic: Canon IS Mode 2. 'at right angles' means? (Read 2568 times)

Gregory · « **on:** June 24, 2006, 06:51:16 am »

the manual for my new Canon EF 70-300 DO IS says:

MODE 2 corrects vibrations and shaking only in the direction at right angles to the camera's panning movement.

my immediate interpretation was in simple terms of vertical or horizontal movement but...
does it actually mean that the image will be stabilised at right angles to the panning movement regardless of the angle? eg, if I'm panning slightly downward from left to right at an angle of say 110°, will the lense stabilise movement in the 20°/200° plane?

(I photograph a lot of birds, some of them in flight.)

btw, the IS is remarkable.

michael · « **Reply #1 on:** June 24, 2006, 08:57:39 am »

Your assumption is essenaitally correct. There are two stabilization mechanisms, each working at right angles to the other. In mode two one of them is turned off.

The lens senses in which direction the movement is taking place. That's why it's a god idea to "lead" the subecjt a bit before shooting, such as a bird in flight. This gives the lens a moment to detect direction and lock on.

Michael

Phuong · « **Reply #2 on:** June 25, 2006, 12:57:59 pm »

what do you mean by "lead the subject" michael?

michael · « **Reply #3 on:** June 25, 2006, 02:04:09 pm »

Partially press the shutter release for a few moments so that the lens has the opportunity to sense the direction of motion and to stabilize on the proper axis prior to exposure.

Michael

Phuong · « **Reply #4 on:** June 26, 2006, 12:21:49 am »

thanks Michael.
i use the

button to focus and the halfpress the shutter release button for mettering (setting C.Fn4 value to 1), so in my case i should hold the
button instead of the shutter release button, am i correct?

Author Topic: Canon IS Mode 2. 'at right angles' means? (Read 2568 times)