Former Nikon (Changes to R5 upon delivery)
- Nov 6, 2019
Another point indicating suggesting I should reconsider my non-use of sun shades!Don't clear plastics turn yellow after a few years of UV exposure?
But seriously, how many hours of direct sunlight does a lens element receive compared to, say, an automotive headlight?
In the telescope world, we but a scope and intend to keep it for a lifetime, knowing that the coating efficiency will decline in the early years. (And we might even be paying a premium for enhanced coatings that can't be recoated.) If a sideline sports pro sees a virtually undetectable 10% light loss in 10 years of active work, that seems economically minuscule.