And there you have it: in contrast to my flattish emotional response to the lens segment, this one held me throughout.
I think that the difference, for me, is that I have worked in engineering and, consequently, have some appreciation for what it entails; in essence, I suppose, it's much more than a dry, theoretical discussion about something I'm not likely to be buying and, consequently, about which I can't claim to be thrilled.
I also liked the low glow, from what I imagine was a reflector, playing on the two principal characters. Happy lighting!
Rob