Grumpyrocker

I imagine the reason for not retasking the delete button is to avoid people accidentally deleting shots when they want to change some menu item.

I think the measure saves battery life. The lens stays wide open to gain the most light - meaning less need for viewfinder/LCD amplification. The reason mirrorless cameras use so much power is that the sensor is on all the time, as that's what we use to see anything. A DSLR can focus and meter without the main sensor at all and only powers the sensor when the shutter button is fully depressed.

My experience too, it just uses single focus point.

Kinda. Set the following: MENU 1 / AUTOFOCUS SETTINGS / INSTANT AF SETTING / --> AF-C MENU 4 / AE/AF LOCK MODE --> AE&AF WHEN PRESSING Then if you set the camera to manual focus, the AF-L button will make the camera continuous focus when you hold it down. I haven't tried this on a moving subject so I don't know how successful it is or whether it makes use of the phase detect pixels.

I think it works the way it does because the camera tries to keep the aperture as wide as possible to keep the viewfinder bright. When you half press the shutter it stops down to your chosen aperture and meters the scene - giving you the shutter speed. But if you release the shutter button the camera opens the aperture again. On some lenses you can hear the aperture opening and closing when you half press and release the shutter.

Deleted by user