In April 2014, Google revamped its Android camera app. In the settings menu under "Advanced", there is just one option: Manual exposure. It defaults to off, but after turning in it on, I can't find any actual controls to manually adjust exposure parameters. I doubt my phone's camera module actually has a physically variable aperture, but I expected to see some way to adjust shutter speed and ISO — or at least to set an exposure value. But I don't see anything. How do I use this new feature?
Sadly, the feature's name is misleading. In fact, I'd go so far as to say that it's wrong, if not an outright lie. Turning this option on just enables you to use exposure compensation — it doesn't let you do anything actually "manual".
If you enable this option, the
I don't understand why this is mislabeled, and I also don't understand why EV compensation isn't available by default. I guess it protects against newbies ruining their images by leaving it on accidentally, but there is an obvious indicator when a compensation value is selected, and EV compensation (with the same icon!) is common on pretty much all cameras at all price ranges. So, it's a mystery. And also something I'm reporting as a bug.
Note that the above applies to the Android 4.4 "Kit Kat" camera and to that app in 5.0 Lollipop. Lollipop does provide APIs allowing apps to have greater manual control, but the built-in camera doesn't take advantage of that, even with this option enabled.