Bob and Caley, Upper Inverroy

A subject moving at 30 mph 30 yards from the camera can be frozen with a decent shutter speed. The same subject just a couple of feet away, to the cameras perspective, is moving much faster across its field of view and is more difficult to freeze.

I understand this concept most easily from using our autolock total station (theodolite), the robotic Trimble S6. You can walk about a field all day at a range of 30 to 200m and the telescope will faithfully follow the pole mounted prism and allow constant measurement. Walk briskly towards and straight past the instrument , passing within a couple of yards, and the Trimble loses lock and it must be re-initiated manually to resume work .

Anyway I explain this in advance by way of justification for the less than sharp nose of the leading dog here. The gravel at similar range at his feet is sharp so it is a speed rather than focus issue.

Anyway my cop out here is that I think it does help to give an impression of speed.