Originally posted by Mistral75 K-3 Mark III (in the centre) compared to K-1 (on the left) and K-3 II (on the right).
Source:
Pentax K-3 III: new pics and size comparisons – breakfastographer
It seems the mount flange is positioned higher on the K-3 Mark III than on the two other cameras. In other words, the volume under the mirror box seems to be bigger.
This might be linked to the new autofocus module.
Originally posted by house The K-3 III is photographed at close range with a wide angle lens, the others at distance. Makes the K-3 III look bloated. Se how the grip opens outward, that's not what it's like. Those photographs give the wrong impression of the camera due to lens choosen for the photographs.
I think it's a bit of both. I first tried to work the image of the silver K-3 III into shape, but the black one seemed to have less distortion overall, or at least seemed better aligned.
So yes, the lens used for the photos makes a difference, everything at the front of the camera looks bigger than in the "beauty" shots (for lack of a better word) of the K-1 and K-3 II. However, if you go to
this article, there is a picture of a K-3 III next to the K-3 II in the same, angled orientation, and it does seem the K-3 III has a bit of a bigger "beard" (can that be used for hipster marketing?) with broader cheek pouches and the mount set higher. Maybe I'll rework that image to show them to scale based on the size of the mount.