Copyright © 2015 ACD Systems International Inc. All rights reserved. www.acdsee.com Wide apertures are ideal if you want a shallow depth of field and/or more light. Narrow apertures are ideal if you want a large depth of field and/or less light. f/2 f/4 f/5.6 f/11 f/22 f/32 APERTURE Slower shutter speeds are best for dim lighting (nighttime photography) and slow moving subjects. Fast shutter speeds are best for bright lighting (sunny days) and fast/action photography. 1/2 1/4 1/8 1/15 1/30 1/60 1/125 1/250 1/500 1/2000 SHUTTER SPEED (seconds) 1/1000 ISO 50 ISO 200 ISO 400 ISO 800 ISO 1600 ISO 3200 ISO 100 High ISO settings are more sensitive to light (better for nighttime and dim-lit environments) and produce noisier (grainy) images. Low ISO settings are less sensitive to light (better for daylight and bright environments) and produce higher quality images. ISO PHOTOGRAPHER CHEAT SHEET