This short video reviews the Exposure “sliders” used in the photo class to illustrate the balance and exposure adjustments when in Shutter Priority, or Aperture Priority user mode. [youtube https://www.youtube.com/watch?v=G0Tu65vVODQ]
Category: Exposure
Exposure: the Balancing Act
This video offers another series of ways to look at the effects on image exposure from changing Shutter Speed, or Aperture, as well as the benefits of changing ISO to help achieve a proper image exposure. Its a long video (15min) in part from a review of the standard exposure “stops” for Shutter and Aperture, and…
Exposure 101
Exposure refers to the camera reproducing the image we see with our eyes with the correct levels of brightness to make a good photograph. There are three camera setting that work in combination to produce a properly exposed image – not too light, nor too dark. These components are: ISO (the camera’s sensor sensitivity) Aperture (the lens opening that…
Reading the Light Meter Indicator
The camera’s light meter indicator presents exposure information in a simple, easy to understand way that helps you to quickly know if your exposure settings will produce a properly exposed image. Pictured below, the light meter indicator is usually accompanied by exposure settings for ISO, Aperture, and Shutter Speed. The light meter scale is measured…
Exposure Elements
EXPOSURE VALUE (EV) = ISO + Aperture + Shutter Speed For photographers wanting to break away from their camera’s Automatic Settings, understanding exposure is the single most important concept to consistently take great photographs. Getting the correct exposure balances three primary settings on your camera; 1) ISO, 2) lens aperture, and 3) shutter speed. This series of…
ISO
ISO refers to how sensitive the camera sensor is to light. In the old film days, the combination and proportion of chemicals used could be adjusted to make the film more, or less sensitive to light (ranging from ISO 100 – 800). Many digital camera today reach beyond ISO 3200 to capture enough light for a…
Aperture
Aperture refers to the size of opening inside the lens that allows light to enter to make contact with the camera sensor (or camera film). The value is represented either as a ratio (e.g. 1:4.5) or – traditionally- as a focal length stop (e.g. f/4.5) otherwise referred to as “f-stop”.
Shutter Speed
Shutter Speed is measured in fractions of a second, and refers to the length of time the camera shutter is open to allow light to make contact with the camera sensor (or camera film).
F-Stops Explained
The Aperture scale is one that is not intuitive to most beginning camera users, and can be cause for confusion. This video explains those common questions including: how f/stop is calculated how available light entering the camera doubles or halves when the aperture numbers don’t double or half how camera manufacturers calculate lens opening size requirements to attain the proper f/stop…