Tuesday, February 20, 2018

DigPhotog: Controlling Light (F-Stops, Shutter Speed, ISO, etc.) (W7-P2) [VID] Sp18

As a photographer, your task is to control lightYou are a master of light.

When you turn that dial from "auto" to "manual", you are taking control of the light coming into your camera.  Two key ways of controlling the amount of light coming into your camera are by setting the f-stop and the shutter speed.

Here now we have two options for coverage of f-stops, shutter speeds and ISO.  Check out at least one of these.

Option 1

Option 2

If you are curious, you might check out "A Picture To Show You Clearly The Effects of Aperture, Shutter Speed and ISO On Images."

Also, if you are curious and want to get a little more techie, you can optionally check out the following video.  Note the exposure triangle.

EXIF Apps and the Exposure Triangle

There are apps that allow you to see the f-stop, shutter speed and ISO settings for your photographs.  If you recall, the f-stop, shutter speed and ISO data and other data (e.g., date, time, GPS location) is what is called EXIF data.  For android devices one EXIF viewer app is Simple Exif Viewer.  For iOS devices an EXIF viewer app is Exif Viewer. A Google search will also show EXIF viewers for laptops and desktops.

Use one of the EXIF viewers and check the f-stop, shutter speed and ISO settings for your photographs. See if the settings or values make sense.  For example, would an ISO setting/value of 800 for an indoor photo make sense?  Why?   Would a shutter speed of 1/2 second for a blurry sports photo make sense?  Why?

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