Rare for me at least—I see this type of lenticular cloud about once for every 30 days I’ve been in the Sierra. This particular cloud changed by the second into fascinating shapes, then disappeared.
The Zeiss Loxia 85mm f/2.4 Sonnar is ideal for this type of shot: superb contrast control and sharpness.
Brian P writes:
That is such a cool shot.
DIGLLOYD: I was thrilled to see this shape, which lasted perhaps 10 seconds; the cloud was writhing.