Only thing that bugs my eye is the horizon (un)level. OTOH, maybe you live on a hill. I like the contrasts on both. Normally, B&W doesn't thrill me, but I like these.

Oh, that was good! I didn't expect the punchline. Just what I needed this morning!

Oof! That's a "to die for" kind of shot! 1st one is photo contest material. Thanks for sharing!

So... the attached photo looks pretty obvious, but if the problem is less pronounced, how would one know whether or not one has such a problem? Is it as simple as looking straight at the sensor with a magnifying glass, or is there an easier method? Shoot monochrome dark backgrounds, light backgrounds?

Regardless of the semantics ("tinning" vs. "tin whiskers,") the problem is real, though, short of using an electron microscope is difficult, if not impossible, to prove.

My take on this is that it probably would not occur on photographic equipment, as someone already mentioned, because photographic equipment is generally not used for long periods of time at extreme temperatures, like a computer/phone/or game system. The difference between "tin whiskers" and cracked solder connections is also debatable, as both occur due to the same problem of chemical properties of non-lead solder, both occur in similar high-temp environments/gear, and neither can easily be observed. Regardless, things fail that shouldn't, assuming normal wear-and-tear of said gear.

Again, I doubt too much photo equipment (so far) has the level of miniaturization, or will stress components in quite the same manner, so I certainly wouldn't concern myself with it until we're all wearing zoom lenses built into our foreheads (Dalek, anyone?) and the camera is embedded in our retina.