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Interactive Multimedia Lessons

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Human Anatomy

Human anatomy is primarily the scientific study of the morphology of the human body. Gross anatomy (also called macroscopic anatomy, topographical anatomy, regional anatomy, or anthropotomy) is the study of anatomical structures that can be seen by the naked eye.

Toggle through different layers and overlays to see different biological systems the human body consists of. Finally, use the 'Magnifier' tool to get a close-up look of individual body parts.

Layers

Overlays

Aperture and Depth of Field

In digital portrait photography, a blurred background is often a desireable feature of a photograph. However, the process is often confusing to novice photographers as in order to achieve a blurred background, the so-called 'shallow depth of field', a large lens aperture needs to be used which is reprenented by a small f-number. Use the slider below, to select different aperture values and notice how both the aperture ring and the background in the example image change.

Example image

image showing blurred background image showing blurred background image showing blurred background image showing blurred background

Aperture Ring

image showing an aperture ring image showing an aperture ring image showing an aperture ring image showing an aperture ring

Aperture value: f-number



Comprehension Check

Which of the following statements most accurately describes the example image?

Quiz image

This is an image with a shallow depth of field captured with a small aperture of f/16.

This is an image with a large depth of field captured with a large aperture of f/1.8.

This is an image with a shallow depth of field captured with a large aperture of f/1.8.

This is an image with a large depth of field captured with a small aperture of f/16.

You now understand how lens aperture affects the depth of field of a photograph. Go and take some amazing pictures! Thanks! Don't give up! Simply go through all of the materials on this page and try again. Will do!