20150922_fossil : 無料・フリー素材/写真
20150922_fossil / MostlyDross
| ライセンス | クリエイティブ・コモンズ 表示 2.1 |
|---|---|
| 説明 | Fossil on a geode from the Jeffersonville Limestone, Clarksville, IN. Magnification about 1:1 at the sensor plane. Horizontal field of view about 25mm."The limestone at the Falls of the Ohio is composed of skeletal remains from countless numbers of corals, stromatoporoid sponges, echinoderms, brachiopods, mollusks, arthropods, and microscopic organisms…. [It] dates from the latest Early Devonian to Middle Devonian. (Geologists call this Emsian and Eifelian Age - 390 to about 380 million years ago).” [www.fallsoftheohio.org]Nikon D7000Micro-Nikkor 105mm f/4 AI @ f/5.6ISO 100, 1/6 secondPN-11 52.5mm extension ringVelbon Macro SliderCombineZM16 imagesdesk lamp |
| 撮影日 | 2015-09-22 17:01:19 |
| 撮影者 | MostlyDross |
| タグ | |
| 撮影地 |