Moving subjects and motion blur
“Q4 reassures viewers that if there were moving objects in the scene, in a TCQ-qualified photograph those objects won’t be rendered in any way other than frozen still, blurred, or invisibly.” (Source)
1. Motion-related things allowed by TCQ
A. Depicting motion blur caused by movement in the relationship between camera and subject (although to meet Q7, a non-motarri object cannot be so blurred as to be unrecognizable)
B. Completely “freezing” a moving object so that it looks like it is standing still
C. Rendering invisible any fast-moving objects that qualify as motarri (a speeding bullet, spinning wire spokes on the wheels of a bicycle traveling at high speed)
D. Panning the camera to follow a moving subject, rendering the subject more or less “frozen still” but the background motion-blurred
E. Showing the effects of routine camera shake (unless the blur is so excessive that the photo cannot meet motarri as required in Q7)
F. Using image stabilization, tripods, gimbal stabilizers, and other common methods of reducing camera shake
2. Motion-related things disqualified by TCQ
A. Rendering invisible (or unrecognizably blurred) any non-motarri moving objects (disqualified by Q7)
B. [unrelated to motarri] Any motion blur that rinairs (the arbiter in Q7) would regard as “misrepresentative” based on the public’s expectation of when motion blur occurs in photographs (read the “giant tortoise” example in #2 on this page)
C. Showing multiple distinct positions of moving objects (because the result depicts more than “one scene”; see Q4) regardless of how the effect was accomplished.
D. Showing any “ghost objects” (again because of Q4).
E. Depicting any apparent motion blur that was not caused by movement in the relationship between the subject and the camera (disqualified by Q7).
(The next three disqualifying actions are specific examples of “E”)
F. Zooming the lens during the exposure (the resulting image is considered TCQ-ineligible and cannot qualify as TCQ no matter how it is processed or labeled)
G. Using a “motion-blur filter” on the front of the lens during the exposure; the resulting image is considered TCQ-ineligible and cannot qualify meet Q7 (or qualify as TCQ) no matter how it is processed or labeled
H. Adding artificial motion blur to the image after the picture is taken (disqualifies the photo from Q2, Q7, and from TCQ)
Anytime a motion-related effect fully meets the Trust Checklist but still might be baffling to viewers, the TCQ photographer can add an “IC” alert and additional explanation if warranted. (#1 here explains why.)