Basics of Photography: ISO, Aperture, and Shutter Speed

ISO, aperture, and shutter speed are the three pillars of photography, controlling exposure, light sensitivity, depth of field, and motion.

Understanding the basics of photography starts with the exposure triangle: ISO, aperture, and shutter speed. ISO controls light sensitivity—higher ISO for low light. Aperture affects depth of field; lower image background remove service f-numbers blur backgrounds. Shutter speed freezes or blurs motion—fast for action, slow for light trails. Balancing these three settings ensures properly exposed, sharp, and creatively styled photos in various conditions.