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"Phoebe
flight 111 light, this is Phoenix International Airport
air traffic control. You're cleared for landing on runway
7 right...er...7 left...er right...Oh heck!...Choose one!"
I derive
a great deal of satisfaction...and frustration!...from photographing
flying birds. However, sometimes I set out to photograph
some real challenges! Lately, I've been attempting to photograph
songbirds in flight. I began with photographing Yellow-rumped
Warblers feeding on flying insects ( see To
Catch a Flying Warbler!). I was literally following
the warblers in flight through the camera's viewfinder while
handholding a 300mm f 4 lens with a 1.4x teleconverter attached.
Out of hundreds of exposures, I got but a handful of successes.
I decided if I were to make flight shots of smaller and
more maneuverable songbirds I would have to change my tactics
some...
I needed
to find a subject that displays a repetative behavior. Flycatchers
often spend many hours foraging from the same perch. This
little Say's Phoebe chose a trail marker post on the grounds
of the Gilbert Water Ranch, Gilbert, Arizona, USA as a foraging
perch. It would have been nice if it had chosen a more natural
perch but...hey!...you can't always direct the bird to a
perch of your choice. The phoebe would perch on top of the
post until he saw a flying insect. The phoebe would dart
off the post, capture the insect in mid-flight, and return
to the post to resume its vigil. This phoebe turned out
to be just the kind of subject for which I was looking!
I backed
quite a ways back from the post to make sure I had enough
room in the image area to capture the phoebe from any angle
as it was landing on the post. My camera and lens of choice
for this series was Canon EOS 1D MkII camera fitted with
a Canon EF 500mm f 4L IS lens plus Canon EF 1.4x II teleconverter.
This let me photograp the phoebe from a tolerable distance
so as not to scare the phoebe away from the post. Once I
got back far enough, I centered the top of the post in the
viewfinder and locked down tight all of the tripod head
adjustments.
If you
are trying to watch for the landing bird through the viewfinder
you will find that to be an exercise in futility! You need
to take your head away from the camera to watch for the
returming bird. I switched the lens from "autofocus"
to "manual focus" and manually focused the lens
on a plane about 2/3 of the way from the front edge of the
post to the back edge of the post. Leaving the lens on manual
focus, I set the camera's exposure control to "manual
exposure" and based my exposure on an incident light
reading. You need to be sure to set an f stop that allows
enough depth of field to cover the back of the post but
you also have to have enough shutter speed to adequately
freeze some of the bird's movements. I have found the slowest,
useable shutter speed to be about 1/640 sec. Higher would
be preferable when possible. To gain the f stop/shutter
speed combination I needed I selected a higher ISO on the
camera. Finally, I set the camera to "continuous"
shooting mode, high-speed motordrive.
Once
everything was set up, I took my head away from the viewfinder
and just watched the phoebe while leaving my right hand
on the camera to fire the shutter when necessary. Canon
long lens shooters have an advantage with this technique.
If the Image Stabilization is turned "on", the
IS can greatly reduce the effects of camera/lens shake.
Anyhow, as soon as the phoebe left the perch to nab a snack,
I would partially depress the shutter button to activate
the IS and, when the returning phoebe was about 2' from
the post, I would fully depress the shutter button and fire
a short series of 4 to 6 images. Not all images were useable.
The phoebe can approach the post from all different angles
so the number of "throw-aways" are quite high.
However, it is a fun and pleasant way to kill a little time
out in the field. :)
These
images were a lot of fun to make but I have improvements
planned for future landing images. The worst element of
these images is the large and image-dominating post the
phoebe chose for a perch. These images would look much better
if the perch were a smaller, natural perch instead. Also,
backing up a little further would have helped some, too,
to avoid clipping wings and tails. This is a tough one to
measure, though. If I back up too far then the bird is so
small in the frame that details will be lost when the image
is cropped. I'll just have to keep experimenting... :)
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