>>3381281That's cheating a little bit, since that's a full-frame ultrawide lens rather than an APS-C f/4 constant normal. But Sony doesn't make a constant aperture normal zoom for its crop bodies, so I'll give it to you.
That being said, pic related is only a smidgen bigger than that micro 4/3 setup (slightly longer, and a viewfinder-hump taller, plus 5.2oz heavier) but matches or beats it in capabilities.