DM Henry

What is ISO ISO is a setting in the camera that changes the camera sensitivity to light. Changing This can make an image appear brighter with the drawback that the image has more visual noise. This will make it appear more grainy. You could use higher ISO when the scene is darker and you cannot use shutter speed or aperture to adjust without ruining the scene. And in contrast, when the scene is too bright you can use lower ISO to decrease exposure. 100 200 400 800 1600 A series of images we took at increasing ISO's and adjusted for brightness with shutter speed and aperture. If you look closely you will notice the increasing noise What is Gain Gain has the same effect as ISO, increasing the camera's sensitivity to light, however, gain can be used to change the lighting during a video. You can increase the gain to increase exposure or decrease gain to decrease exposure during a film.

  What is aperture? What aperture controls is how wide or narrow the opening of your lens is while taking a photo. You can shrink the lens with a higher aperture allowing less light to enter or expand it with a lower aperture allowing more light to flood in. This has a direct effect on exposure and depth of field. A picture I took with a very low aperture demonstrates the bouquet effect. How does aperture affect exposure? By changing the amount of light entering your lens you affect the exposure of your photo every time you change the aperture. With a higher aperture, your scene will be darker and with a lower aperture, your scene will appear more bright. These two pictures I took with the same lighting  but with different apertures demonstrating its effect on exposure how does aperture affect depth of field? Aperture is very important for its ability to change the depth of field.  Using a large aperture and closing your lens to a smaller size creates ...