HuntIV

Aperture: (using Aperture Priority mode) The aperture is simply the diameter of the lens of the camera being used. The selected aperture determines how much light will pass through the lens and make contact with the film; the retina controls this. On many cameras used specifically for photography rather than point-and-shoot cameras, the aperture is determined through f-stops. These f-stops are numbers (ie. 2.8) that express the diameter (aperture) of the lens. The smaller this number is, the larger the opening of the lens.

Apertures can be shown in many ways. For instance:

Maximum Aperture

Ie. F2.8

Aperture Range

Ie. F2.8 – F8

The aperture range shows the minimum aperture as well as the maximum, while also assuming there are standard increments (f-stops) between them. Between the maximum and minimum aperture are 5 f-stops.

(ie. If the maximum were F1.8 and the minimum were F16, the in-between increments would be as follows: F2.8, F4, F5.6, F8, and F11).

**If your aperture is currently set at F5.6, closing it by 1f-stop would put the aperture at f8, and opening it by 1f would put the aperture at f4.**

**A “good” aperture range is usually between F1.8 and F16**

(http://www.photoxels.com/tutorial_aperture.html)

Shutter Speed: (using Shutter Speed Priority mode) The shutter speed is literally the amount of time the shutter itself is open. In digital photography, it is the length of time that the image sensor on the camera “sees” the scene the photographer is attempting to capture.

It is measure, mostly, in fractions of seconds, sometimes in plain seconds. The larger the denominator, the bottom number on the fraction [ie. 1/30 (30 is the denominator)], the faster the shutter speed is. (ie. 1/1000 is much faster than 1/30).

Usually the shutter speeds double in speed, making it easier for the photographer to determine which to use (ie. 1/8, 1/15, 1/30, 1/60, 1/125, 1/250, 1/500).

**Increasing shutter speed by one f-stop and decreasing aperture by one f-stop should give the photographer similar exposure (amount of light taken in) levels.

In most cases, a digital photographer will usually be using shutter speeds of 1/60 or greater.

(http://www.digital-photography-school.com/shutter-speed)