HDR images & Traf­fic trails

Vary your ex­po­sure to bal­ance out scenes or cre­ate rib­bons of light

NPhoto - - Night Vision -

When shoot­ing at night there will be places where the lights in one part of a scene can over­power those in other ar­eas, mak­ing it im­pos­si­ble to record a bal­anced ex­po­sure in a sin­gle frame. Other than chang­ing the bulbs, the only way to cap­ture de­tail in the bright­est high­lights while still re­tain­ing de­tail else­where is to shoot two or more frames in per­fect reg­is­tra­tion, then com­bine the ex­po­sures later for an HDR (High Dy­namic Range) im­age. In our clas­sic shot of Pic­cadilly Cir­cus here, the ad­ver­tis­ing boards were much brighter than the rest of the lights, so first we took one frame with the shut­ter speed at 1/5 sec. This was fine for most of the scene, but the ad­verts were com­pletely blown out. So we un­der­ex­posed by four stops for the sec­ond frame (1/80 sec). Once done, we used Pho­to­shop’s Merge to HDR Pro com­mand to blend the two ex­po­sures for our fi­nal, more bal­anced scene.

Another ex­am­ple of un­bal­anced light­ing oc­curs in car lights. Frontal head­lights are much brighter than rear tail­lights, so for our cre­ative twist on the scene here, we looked for a one-way street in which all the traf­fic would be head­ing away from the cam­era, got set up on a small traf­fic is­land, and then used a long ex­po­sure to trans­form the lights of pass­ing cars, lor­ries and buses into beau­ti­ful rib­bons of light snaking across the frame.

Newspapers in English

Newspapers from Australia

© PressReader. All rights reserved.