Most lenses nowadays come with a multipurpose chemical coating, meant to not only protect the lens a bit more from accidental scratches, but to also reduce reflections and aberrations and provide a clearer image. How the coating actually works might be a mystery to many of us though.
But fear not, because Nikon is here to shed some light on the matter with a new video that shows off how its fluorine coating — the one currently present on the company’s 800mm f/5.6 and just released 400mm f/2.8 — is of great benefit in many practical applications. The video comes in at only two minutes, so it’s a nice, quick and interesting watch.
(via Nikon Rumors)