Why ISO 100 ISO 100 is the crispest image with the least amount of graininess. It allows for more cropping and editing possibilities. Tom McConnell2024-05-17T21:20:56+00:00 Share This Story, Choose Your Platform! FacebookXRedditLinkedInWhatsAppTelegramTumblrPinterestVkXingEmail About the Author: Tom McConnell North Florida Photographer at StAugustinePortraits.com