Scene dynamic range

For this exercise I took a number of different images to measure the dynamic range of these scenes.

P 546: f4 @ 1/10  ISO100  27mm AWB

P546 was taken indoors in natural light from a nearby window on a dull day. I measured the dynamic range as being between F4 and F10 i.e. 8 stops.

P 547: f10 @ 1/60 ISO 1600  -1.3exp.  ??mm AWB 

The range here is F5.6 to F20  i.e.  11 stops.

 

P548: f5.6 @1/60  ISO 100  44mm

P548 had a dynamic range of 5 stops i.e. F5.6 to F10 - taken outside on a cloudy day.

 

 

 

 

P549: f8 @ 1/20  ISO 100  55mm  WB Daylight

 

This nasturtium was captured on a bright sunny day. The image is low contrast and I measured a dynamic range of between F5.6 and F9 i.e. 4 stops.

 

 

 

P550: f11 @1/80  ISO 100 25mm WB Daylight

P550 was taken on the same morning as P549 ( bright sunshine ). Here the dynamic range was 7 stops  ranging from F10 to F20.

 

 

 

 

From these shots it seems that my camera's dynamic range is smaller when the image is low contrast a P549)  and much higher when there is a bright light within the composition leading to a very high contrast image ( P547).