One push auto expo

[ReinisK]

Would it be possible to implement such feature? For example auto expo (iso or iso+aperture) for like 3 seconds with one push of a button.

Another question - is there the auto iso mode on 550d anymore? I cant find it (running a few months old nightly).

[eduperez]

We have something similar in 400plus: push a button, while in M mode, and the camera will change shutter speed and aperture to match the light in the scene; sometimes it's useful to get a "good enough" exposure quickly. But in our case, it is a one-time feature, you have to press it again if the light changes.