ML30522361
投稿者
日付
場所
- 年齢と性別
- 成鳥、性別不明 - X
視聴覚メディア・ノート
This photo nicely conveys the rich color and texture of the top-side (including the head) of this bird, its strikingly long legs for a calidris sandpiper, and the nature of the markings on its rear underside (i.e., behind the legs), right up to the undertail area. Of potential interest to the aging of this bird may be the decidedly grayish wing coverts as shown on the folded wing. A problem with drawing any conclusions about aging on the basis of these feathers as shown in this photo, though, is that due to poor focus and poor light on this part of the bird, neither the state of wear nor the shape of the tips of these greater coverts can be ascertained. Subsequent commentary will be provided in discussion of another of the photos herewith (i.e., ML30522371).
観察結果の詳細
The Curlew Sandpiper was seen on or near the shoreline of this small island, at a considerable distance from the viewing birders who wisely avoided efforts at overly close approach. By means of digiscoping, I obtained far more detailed photos than I could have had using my zoom telephoto lens (75-300mm) attached to my DSLR camera. For digiscoping I hand-held my DSLR camera with 50mm lens to the eyepiece of my spotting scope, which afforded me some very close-up images of the bird. The lens on the camera was set at infinity, and the scope was used for focusing.
テクニカル・インフォメーション
- モデル
- Canon EOS 10D
- ISO
- 400
- 焦点距離
- 50 mm
- フラッシュ
- Flash did not fire
- Fストップ
- f/3.5
- シャッタースピード
- 1/180 sec
- 大きさ
- 1660 pixels x 1245 pixels
- オリジナルのファイルサイズ
- 344.63 KB