Aperture Manipulating Depth of Field. What/ where is it? Put most simply – Aperture is ‘the size of the opening in the lens when a picture is taken.’

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Presentation transcript:

Aperture Manipulating Depth of Field

What/ where is it? Put most simply – Aperture is ‘the size of the opening in the lens when a picture is taken.’ When you hit the shutter release button of your camera a hole opens up that allows your cameras image sensor to catch a glimpse of the scene you’re wanting to capture. The aperture that you set impacts the size of that hole. The larger the hole the more light that gets in – the smaller the hole the less light.

Aperture is measured in ‘f-stops’. You’ll often see them referred to f/number – for example f/2.8, f/4, f/5.6,f/8,f/22 etc. Moving from one f-stop to the next doubles or halves the size of the amount of opening in your lens (and the amount of light getting through). One thing that causes a lot of new photographers confusion is that large apertures (where lots of light gets through) are given f/stop smaller numbers and smaller apertures (where less light gets through) have larger f-stop numbers. So f/2.8 is in fact a much larger aperture than f/22. It seems the wrong way around when you first hear it but you’ll get the hang of it.

F-Stops

How to set your camera… On your camera you need to turn the dial to the “A” setting. You move the F-stops by moving the “dial”

F-3.8

F-8

F-13

F-20

F-25

Practice Time. Pick 3 toys and find a flat stable surface. Camera Toy 1 Toy 2 Toy inches Take 5 pictures. Start at the lowest f- stop and end at the highest. Keep the camera in the same place and make sure the area around you is kept clear and still. The better the quality of light the higher the F-stop you can achieve.

\ Aperture Assignment #2 Due at the end of class monday in your file. (under assignments in folder named “ Aperature2 ”, rename one “ high ” and one “ low ” ) You need to take two pictures- these should be creative and investigative. By the end of this week I want you to know what you can use the Aperture setting for, these photos should prove that you “ got this ”. Take a photo (your choice) illustrating how a low f-stop can affect your photo. Low F-stop = more light which equals less area in focus. Examples: Take a photo (your choice) using a HIGH f-stop (less light, more info), making sure that you have a large area of focus. Try taking this one from an interesting point of view. Examples: