When studying photography at Priestley College, one of the core areas of teaching early on in your course focuses on manual exposure using a digital SLR (DSLR) camera. This task introduces you to the fundamentals of manual photography introducing you to the exposure triangle. This ‘triangle’ is made up of the following; aperture, Shutter speed & ISO. These terms relate to different settings on a digital camera.
You need to read through the attached PDF document and then click on the link on the last page. This will take you to an online resource where you can practice and experiment with the exposure triangle to see what effect changing settings has on a provided photograph.