"Where is the camera, if not in the tricorder. So why do we see it then? Does he have to erect a stand and put a video-camera onto it first, then pose in front of it each time he wants to make a log entry?"
Well, the Starnes expedition had to consist of more than just these people, their clothes, their tricorders and a silly banner. There must have been shelters, instruments, supplies of all kinds, probably vehicles and weapons as well. Odds are, Starnes would be recording these logs while standing next to his regular desk which, among other things, has one of those viewscreen/camera thingies found in the offices of our
Enterprise heroes...
But the ability to reconstruct visual imagery from an arbitrary vantage point would still explain that particular scene just fine. It's the other implications of "camera-in-tricorder" that worry me more, though: why is this feature never put to practical use?
I mean, it's not so bad in TOS, where the landing parties seldom depend on communications with the mothership, and usually act quite independently. But in TNG, our heroes regularly run into a situation where character A has to describe something he or she has found to character B over comm channel, and typically fails miserably. Why not pipe some live video to B?
The problem is implicit in most of TNG, but painfully explicit in "Heart of Glory" where our heroes jury-rig a visual device out of LaForge's VISOR. This device is obviously of great value to our heroes - it's essentially a tricorder feeding directly onto the starship's viewscreen. Yet the heroes complain that the feed is not ideal for all purposes, that there's too much information there. Why not pipe in simple visuals from a tricorder, then, either to complement or to replace the VISOR feed?
In "Identity Crisis", we see a dedicated camera, of head-mounted type. It's a somewhat "magical" device, though, as its imagery can be used to produce a complete 3D simulation on the holodeck, good enough for forensic use; a non-magical camera would leave "shadows" everywhere, causing most of the 3D simulation to be unreliable guesswork. I have no problem with the existence of a few special devices of this nature to complement the visual recording abilities of the tricorders. I hate it when the tricorder abilities are ignored, though.
Timo Saloniemi