"The Q-S1 also has a max aperture of f/8, which can make it difficult to control depth of field. This is more restrictive than many cameras that have a max aperture of f/20 or more for greater depth of field."
1) Max aperture is usually the smaller number (ex, f2.8), not the larger number because the f system is about a ratio between aperture and focal length, not the aperture diameter itself. The smaller the f number, the larger the physical aperture
2) Each lens has it's own min aperture (which you call max) and it's not determined by the camera. It ranges from f5.6 to f9
2) The Q's sensor is so small that it's max aperture of f8 is already microscopic compared to any DSLR. In actuality, it's f8 is smaller physically than f32 on a 35mm film camera (or FF DSLR) and plenty tiny for maximizing depth of field in nearly all conditions. The physical aperture controls the depth of field, not the native format f-stop.
3) f8 is basically at the diffraction limit for this resolution. Suggesting the lenses need to support a smaller aperture is... wrong.
as mosc wrote just before, the article contains a very concerning mistake in regard to photographic technique and basic camera/lens knowledge. It's a pity since the review seemed to be quite well structured.
Sadly, the mentioned misconception completely undermines the competence of the reviewer and the validity of the article. In fact, also some poor results in the test could be challenged as consequent to a misuse of the camera. Two easy examples:
- the blurry eyes/face in the selfie: 1/40s is definitively too slow for holding the camera in such an awkward position (all photo is blurred, not only eyes), the lady was also probably moving her head;
- aperture priority and camera's "hesitation" to choose slow speed: just start setting first either the ISO value you want ot use or the maximum ISO number you consider acceptable and the problem would be solved.
At least this review clearly shows that this is not a P&S camera and no camera for smartphone users.