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Discover how to achieve the perfect exposure in photography by mastering the Photographic Triangle, which consists of Aperture, Shutter Speed, and Film Speed. Learn which elements to prioritize based on the effects you want to create, from depth of field to motion capture. Explore different Film Speeds and their impact on light sensitivity, enabling you to choose the right ISO for various lighting conditions. This guide will empower you to make informed decisions for achieving truly remarkable photographs.
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Understanding Exposure GETTING THE RIGHT AMOUNT OF LIGHT TO MAKE THE PICTURE
The Photographic Triangle Photography’s creative tools include: Aperture Film Speed Shutter Speed Photographer must decide which one takes priority.
The Photographic Triangle Aperture • most important for depth of field Shutter Speed • most important for action – show motion or stop action Film Speed • speed used allows for different aperture/speed combinations to provide a variety of creative effects
The Photographic Triangle Which element you choose as a priority will be the most important decision you make before taking a photograph. next
Film Speed • Choice of film speed affects the ability to achieve creative effects with aperture and shutter speed • Commonly measured using ISO number • 25, 50, 64, 100, 200, 400, 800, 1600 • each is twice as sensitive to light as the previous
Film Speed Speed of film determines its sensitivity to light Slow speed (ISO 25, 50, 64) • less sensitive to light • good for daylight • depending on the light, may require longer exposure times/larger apertures Fast speed (ISO 400+) • more sensitive to light • good for night, indoors/low light • depending on the light, can use shorter exposure times/smaller apertures