A change of pace today as we move indoors next to the wood stove; appropriate on a windy and chilly fall day.
I made this picture of the fan that sits on the wood stove on the first day that we fired up the stove this fall. It was a much extended summer this year and we did not need the supplemental heat until three weeks ago. The last few days have been another story entirely with frost, clear skies and then yesterday a strong, cold wind.
The Ecofan is an ingenious design which runs on a thermoelectric motor that uses only heat from the wood stove to turn the fan and better distribute the warm air of the stove. They are said to improve wood stove efficiency by making the room more evenly heated and certainly we have noticed a big difference since we got this one.
There are two blades to the fan and even with quite long exposures I tended to get a banded shot of the fan blades when they are in motion. So, I took a number of brackets and blended them in photomatix to get this picture which more fully illustrates the blades rotating, but also allows the radiating fins to be visible on the main body of the fan behind the spinning blades. Really long exposures gathered too much light from the shiny fan blades and gave a white blurred circle without any background visible.
Canon 5Dii, Canon 100mm/f2.8 macro lens, ISO100, f2.8, five brackets, 1/8th second at +/- 1 EV and +/- 2 EV.