Bullfrog In A Stream
I photographed this Bullfrog in a stream that flows out of a pond. The pond is my neighbors but the stream flows across my property here in the Ouachita Mountains.
I can see the pond from my deck and in the evenings I can hear the Bullfrogs. This Spring it sounds like hundreds of them.
You will also notice that the water in the stream has a rust color. I read that oxidation of mineral deposits cause the oxygen to be depleted. In the absence of dissolved oxygen, the solubility of iron in water usually increases, since iron is one of the most common elements on the earth it is usually present in the groundwater system.
The oxygen in the air oxidizes the iron in the water from the ferrous (+2) state to the ferric (+3) state where it is insoluble. The insoluble iron minerals are rust colored.
How I Got The Shot - Bullfrog
I was hand holding my Canon EOS 7D Mark II with the Canon EF 100-400 mm f/4.5-5.6L IS II lens. I was shooting in aperture priority mode (AV) with a shutter speed of 1/1250 of a second at f7.1 and the ISO at 800. White Balance was set on auto. I was using single point, continuous auto focus with evaluative metering.