(Updated from the original Feb 9 post, as reader John Crosby found the solution to the “unreliability” problem I was having. “In quotes”, because it turned out to be user error!)
By now most of you have discovered that if you zoom into multiple images simultaneously in Aperture, then hold the shift key while dragging them around, the images stay aligned. This is a perfect way to compare the same area of different photos of the same thing—for example to pan around several shots of a group portrait looking for the one where the fewest people are blinking or making a funny face.
If you hover the mouse over any part of one of the images when you tap the Z key, Aperture will zoom into that point—but only for that image. If you are careful to have the mouse not pointing at any part of any image when you tap the Z key, then all images will zoom to the center. Great.
Aperture 3, four images selected, normal view, before zooming…
Continue reading to see the rest—and watch a video on it!