Analog.Cafe βΊ Apps & Downloads βΊWhat Is an Aperture and How Does It WorkPrintable PDF πWhat Is an Aperture and How Does It WorkA printable PDF guide on aperture in photography. Understand how it works, build your own practical experiment, and learn everything there is to know about how it affects light.DownloadContinue to Sign InFree, 5 seconds to sign up, no spam.