Posted by Dennis Plank on July 14, 2010 at 10:30 PM
I was shooting a Pine Siskin the other day when a Rufous Hummingbird unexpectedly arrived. I took a bunch of images, but forgot to adjust my settings. In the process I learned just how good hummingbirds are at maintaining their heads and beaks in a stable position.
Compare the clarity of the beak and head in this image with the feet and tail area, not to mention the wings. Even the nearby leaf is visibly vibrating in the wind from the wings.
This was taken at f9, 1/100s, iso400. To emphasize the vibration I cropped this to about 20% of the original and did the same sharpening I would normally use for web presentation.
Now if I could just get hummingbird grade image stabilization, I'd be set.
Posted by Brian Gatlin on July 15, 2010 at 12:08 AM
interesting, Dennis! and at 1/100, too--that's a steady head. I'm all for hummingbird IS lenses--not only stable, but lightweight!
Posted by Nate Chappell on July 15, 2010 at 12:34 AM
Dennis, this "screw-up" is an outstanding way of showing the result of what the publications David mentioned in his comment describe. You could even go to one of David's links (the first one I think would be best) and try to send the authors of the paper a copy of the image or at least a link to this forum. I bet that they would be very interested.
Discussion
10 repliesCompare the clarity of the beak and head in this image with the feet and tail area, not to mention the wings. Even the nearby leaf is visibly vibrating in the wind from the wings.
This was taken at f9, 1/100s, iso400. To emphasize the vibration I cropped this to about 20% of the original and did the same sharpening I would normally use for web presentation.
Now if I could just get hummingbird grade image stabilization, I'd be set.
Nice graphic demonstration; thanks for sharing.
---John
This is very interesting. In fact, I spent some time on the web looking for studies related to how the birds accomplished this remarkable behavior, with an emphasis on the sensory/motor mechanisms involved (my interests in a previous life).
I found a description of a paper that may be of interest to you (and I have a copy of the original paper if you are seriously interested).
http://news.softpedia.com/news/Hummingbird-039-s-Hovering-Abillity-From-Its-Brain-41440.shtml
Another summary of the same paper is here
http://neurophilosophy.wordpress.com/2006/12/01/how-hummingbirds-hover/
Dave
True: but just think of the battery drain!