How did the snowflake shadows happen?
I took this photo and then when I looked at it later on the computer I was shocked and surprised to see that the snowflakes have shadows. There is absolutely no post-processing on this photo except for the addition of the frame. I really wonder how this shadow effect happened. Yes, I used the flash, but I have used the flash in snow scenes many times in the past and never achieved this effect. I only took the one shot, I wish I had noticed the effect right away and then I would have tried for more like this. But --- would I have been able to get the effect again or was it just a once in a thousand happening?