Lens Definitions

Types of Lens':

Sigma Superwide 8-16mm

- Ultra-wide angle zoom lens; makes image/background appear larger & very sharp

- Useful in landscape and interior photography

24mm

- Wide angle fixed lens; not as extreme as 8-16mm

- Useful in architecture, landscape, & interior photography

50mm

- Standard lens; mimics the field of view of the human eye

- Can be used for many things, such as portraits, photojournalism, macro images, etc.

60mm (macro)

- Fixed lens; makes things appear bigger than they actually are

- Good for taking pictures of bugs, plants, & any small objects

85mm

- Fixed lens; produces high quality images in low lighting & maintains closeness to subject

- Ideal for portraits; allows subject to stand farther away from photographer

Lensbaby Lens

- Selective focusing lens; focuses on one part of image & blurs the rest (appears circular)

- Used in special effects photography; useful for bokeh effects

80-200mm

- Telephoto zoom lens; compress' image and makes objects appear closer

- Good for taking pictures of wildlife, sports, & portraits

1. What is a prime lens? A lens with a fixed focal length (e.g. wide angle, telephoto); no zoom

2. What is a zoom lens? A lens where the photographer can change from a long shot to a close-up by varying the focal length

3. When looking through a telephoto lens does the object appear closer or further? The object would appear closer; due to a narrow field of view, the image appears magnified

4. Describe an example of when you would use a wide angle lens? If your are trying to take a shot of a large landscape, like a farm, and you want to fit everything you see in the image

5. When would you use a macro lens? When taking close-up shots of small objects (e.g. insects, plants)

6. If you want a macro effect but DO NOT have a macro lens, what is another option? You can take your current lens off and hold it against your camera backwards while on manual mode; if the picture is to light, the shutter speed is to long