Bracketing (Colin Houck)

Part One

DSC_3477

  • Under exposed

(1/125, f11, ISO 100)

DSC_3478

  • Normal exposure

(1/30, f11, ISO 100)

DSC_3479

  • Over exposed

(1/8, f11, ISO 100)


Part Two

DSC_3504

  • Under exposed

(1/60, f2.8, ISO 100)

DSC_3505

  • Normal exposure

(1/15, f2.8, ISO 100

DSC_3506

  • Over exposed

(1.4, f2.8, ISO 100)


Bonus!

DSC_3364

DSC_3365

DSC_3366

One of the neat things about bracketing is that it is the basis for a post production process known as high dynamic range editing, or HDR for short. The basic premise is that by taking shots of a scene at different exposures, then combining them in post production, you can select elements from each exposure to blend together to create a picture with more dynamic range than the camera is normally capable of by itself. There is also software that automates the process.

Below is an example of an HDR image I put together in Photoshop using the above three exposures of the Willamette river, looking west on the Autzen footbridge. I used a 28mm, f2.8 prime lens, wide open with focus set at infinity, and exposure times at 1/1,600, 1/400, and 1/100.

w_river_west_view