- Stable shot mode is cool.
- Macro focus. Awesome.
- Zoom is fast.
- There is no exposure compensation. Pretty piss-poor.
- FX settings are useless. Seems to be the main claim to fame, really.
- Pressing the hardware camera button caused a crash.
Restarting it, it claimed it "could not connect to the camera", and suggested either a task killer (without suggesting which task to kill) or a phone reboot.
Finally, on the Xperia X10i, Camera ZOOM FX is unable to mute the shutter sound. The FAQ claims this is unavoidable due to operating system restrictions - yet, somehow, the native app manages to take silent photos just fine. Obviously there is something there the CZF developers don't know (or don't have access to).
The non-muting shutter sound is a dealbreaker for me, as I generally do not want people to know when I'm snapping pictures. It's embarrassing.
I got it for 10 cents - your mileage (and value) may vary.
Update: Muting system sounds seems to somehow mute the shutter sound. I'm not sure exactly how to do it - Timeriffic is in charge of that on my phone. But I tried CZFx today, and the shutter sound is gone.