In article ,
RichA wrote:

http://petapixel.com/2016/04/04/sony...rorless-fatal-
mista
ke/

as for the article, it's just another ignorant rant. he starts off by
refuting sony's size claim and then shows a picture of three cameras
where the sony camera is clearly the smallest.

But not when fitted with a lens.

yes when fitted with a lens.

the author of that article intentionally chose lenses that make the
sony look worse than it normally would.

I wouldn't say that. Most Sony FF users do buy into the large, professional
lens lines so they can get reasonable performance, rather than suffering with
Sony's lower-tier stuff.

which means it's the *lens* that makes it big.

f/2.8 constant aperture pro lenses are bigger than f/3.5-5.6 kit lenses.