I went to a Best Buy recently and tried a few point-and-shoot cameras, among which the Canon G15, Canon SX260, and Canon SX50. With all of them, I noticed that the live view freezes for a short time when I half-press the shutter button to focus.
(I am NOT talking about shutter lag, but about lag when focusing. I don't know if there is a proper term for this, so I will try to explain what I mean. If I pan the camera from left to right, the live view updates fast enough that I do not notice any lag. Now, if I pan the camera again, and half-press to focus while panning, the live view freezes for a noticeable split second, then resumes updating again. Panning has nothing to do with this -- it just makes the freezing more noticeable. Also, after focusing I just release the shutter button without taking the shot. So I am NOT talking about the "review" feature.)
Is this freeze-when-focusing an inherent flaw in most point-and-shoot cameras, or is there some setting I can change to get rid of it?
The freezing was noticeable in all point-and-shoots I tried at Best Buy, except some Nikon ones. What I find baffling is that my 4-year-old Panasonic FZ28 shows no noticeable freezing at all. Surely point-and-shoots must have improved, not regressed, since then!