A “hollow” phenomenon
Just before sunset, I observed another curious phenomenon related to the first. Tall rocks and grasses in my normal shadow shone brightly through it, causing it to glow and look hollow. Deborah also saw this before the effect vanished once the Sun’s reflection disappeared.
This complementary effect is similar to fill-flash in photography — a technique that uses a flash to illuminate details hiding in the shadows of an otherwise bright image. In the case at Lake Waiau, the reflected Sun served as the flash. As soon as the image vanished, our single shadow no longer looked hollow.
As always, send what you see and think to
sjomeara31@gmail.com.