Week 6 Photo 7
_DZ19163 by
Mal Schulstad, on Flickr
I'd originally selected this one just to once again talk about how difficult it is to portray how steep a climb on a mountain bike trail is (this was leg screaming steep - especially after climbing for almost an hour already). However I noticed something even more interesting with this photo.
As usual, riders at the very edges of the frame are not as sharp as they could be. Initially I thought this was a function of the shallow DoF (shot at f2.8). Then as I looked at the trees near the edges of the frame some of the detail there seemed to be okay so I began to think it was a function of the shutter speed (1/250) - even though they were going slow which is the case when people are climbing.
After more thinking I've come to the conclusion that it's a function of both a shallow DoF and shutter speed combined. The camera has focused on the riders in the distance resulting in a less than optimum light capture in the foreground. Combined with the motion of the riders it was enough make the riders appear to be diminish any chance of getting the riders on the edge of the frame sharp, while still being able to capture some of the detail in the stationary trees.