ML198680011
Автор
Anne Olsen Медіа від цього автора Профіль
Дата
Локація
Pocosin Lakes NWR--Pungo Unit
Washington, North Carolina, United States
Медіа з цієї локації Ілюстрований чеклист- Вік
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- Стать
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Деталі спостереження
Estimate from the attached photo viewed on a computer screen with photo managing software which allowed zooming in to see detail. Method used was to select a typical 0.5" strip and, using the grouping method, estimated the number of geese in the strip to be 125. The mass of geese measured over 8" in length on the screen. Then multiplying 125 by 16 got 2000. Assuming the depth of the geese in the mass was 5, this yields 10,000. Note that this mass of snow Geese was seen across the lake about 2 miles from our location on the viewing platform. Identification was made from the photo after we got home and had access to our computer.
Технічна інформація
- Модель
- Canon EOS 7D Mark II
- Об'єктив
- EF100-400mm f/4.5-5.6L IS II USM
- ISO
- 1250
- Фокусна відстань
- 400 mm
- Спалах
- Flash did not fire, auto
- f-stop
- f/8.0
- Витримка
- 1/1600 sec
- Розміри
- 5472 pixels x 3648 pixels
- Розмір вихідного файлу
- 2.07 MB