10Shooting Techniques Portrait SubjectsLight Level and ISO SensitivityAdjust lighting and ISO sensitivity appropriately.After choosing both shutter speed and aperture manually,you may need adjust lighting or ISO sensitivity.These photos use soft, nat-ural light instead of flashor studio lighting. Out-door lighting can be fi ne-tuned by repositioning themodel or photographer(above), indoor lighting byraising or lowering blinds(right).Learning from Failure: Same Shot, Different FocusWith the D800/D800E, you will notice that photos seem to haveless depth of field than pictures shot with other cameras underthe same conditions, and that focus consequently requires moreattention. As can be seen from the examples below, changingthe focus point even slightly can blur important details.SuccessFailureEarring is in focus,iris and eyelashesare blurred