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Lenses

Screen shot 2013-02-06 at 2.08.49 PM

The focal length of a lens determines its angle of view (how near or far something appears, even how distorted the image appears). This Cambridge in Colour site has more information than you’d probably ever want on Understanding Camera Lenses. Let’s look at some photos taken with different lenses.

Wide Angle

According to Wikipedia, wider lenses tend to magnify distance between objects while allowing greater depth of field. You may have heard of a “fisheye” lens (common in skateboard photography and video). To read more about wide angle lenses, check out the Cambridge in Colour site. Here’s a link to some spectacular photos taken with wide angle lenses. Here are some examples of my own:

fisheye

Charles with Guitar by Keri Valentine Creative Commons License

fisheye2

Bricks of Nantahala by Keri Valentine Creative Commons License

IMG_1735

Fisheye Valley by Keri Valentine Creative Commons License

Telephoto

telephoto lens is a long-focus lens in which the physical length of the lens is shorter than the focal length. This extends the light path. Below is an example comparing zoom and non-zoom:

Using zoom

Using Zoom by Keri Valentine Creative Commons License

Without zoom

Without Zoom by Keri Valentine Creative Commons License

Check out this image comparing wide-angle and telephoto lenses from Cambridge in Colour.

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Macro

Macro photography captures images close up (sometimes more than we can see with our eyes). These lenses produce an image on the focal plane (i.e., film or a digital sensor) that is the same size or larger than the subject being imaged. These lenses are used for “close up” photography and bring the focal plane “forward” for very close photography. The depth-of-field is very narrow. Below are a few examples, but you should also consider checking out Natialia Maks close-ups of objects in a garage.:

macro

Macro Iris by Keri Valentine Creative Commons License

fly

IMG_1746

Metal iPhone Macro Adapter by Keri Valentine Creative Commons License

Filters

There are so many types of filters – might want to check out Wikipedia for more information. Check out what B&H Photo has to say about filters. Here are a few examples:

Color Filter

Color Filter by Keri Valentine Creative Commons License

Star Filter

Star Filter Tree by Keri Valentine Creative Commons License

Reflection Filter

Reflection Filter from Grandma by Keri Valentine Creative Commons License

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