Sure. But that's frankly overcomplicating things. The people considering the iPhone 7 [Plus] as their camera don't need a detailed discussion of the factors that affect depth of field. Hell, Apple was calling this Bokeh. What the typical consumer needs to understand is that a large aperture on their phone won't make it take pictures that look like a DSLR.

> It doesn't look like the iPhone 7+ will really do this either, but employ some software tricks and perhaps a rough depth map to do slightly better than a simple filter would. The examples seen so far were hardly compelling.

Yeah, I don't have high hopes for this either.

> Fwiw, depth of blur for portraiture and sports photography are usually achieved through different mechanisms anyway, on being focal plane location and the other (mostly) motion relative to that plane

I'm not sure what mean here. I'm not aware of anyone doing lots of portraiture that involves any motion at all. And sports photography is typically shot with a fast enough shutter to largely freeze any action. The obliterated backgrounds in portraiture and sports photography is mostly achieved by using long lenses wide open.

> The "portrait" look that most people actual want is achieved through foreshortening as well as blur, and you aren't going to achieve that with the (typically quite wide) optics on a smart phone. Even the 7+ "tele" is actually a normal, it seems.

I agree, though I think more people are conscious of the blur than the perspective difference.