blue dasher - timpanagos wtp, utah lake, utah

 

A Skimmer family dragonfly, the Blue Dasher seemed to be common. This one has raised its abdomen (the 'obelisk posture'), which is thought to help prevent overheating on hot sunny days.

 

Home Page Technical Details
Images Index Canon EOS 5D Mk III
UK Slide Shows Canon EF 100-400mm f/4.5-5.6L IS II USM @

400mm

Non - UK Slide Shows ISO 250
UK Images Aperture: f/14 -1/3 stop
Non - UK Images Exposure Time: 1/250 sec