I recently traveled to Haines, Alaska
along with a few friends from the Whitehorse Photography Club to
photograph the eagles that congregate there for a late salmon run on
the Chilkat River. The club assigns a monthly theme for members to
shoot and then show our best results at the next meeting and the theme
for our December meeting is "in flight", so catching the birds airborne
was a major focus of this outing. That is a challenge at any time but
the flight patterns of the eagles here tend to be erratic and
unpredictable and the low light at this time of year makes continuous
autofocus more unreliable, especially with a slow lens. My most
successful shots were fairly distant and often contained distracting
elements elsewhere in the frame so most required heavy cropping and
that also brought out the quality limitations resulting from relatively
high ISO. Massaging the images in software, including liberal use of
Noise Ninja and Photokit Sharpener plugins in Photoshop, yielded
considerable improvement but I don't expect to be able to produce any
satisfactory large prints from these photos. Still, some like this one
are satisfying to view on-screen. Pentax K-5, Sigma 150-500mm f/5-6.3 APO DG OS HSM @ 500mm, 1/1500sec @ f/8, ISO 800