Calibrating Your Camera

Verifying ISO

Before you head out and shoot that big gig with your new camera, you should first check to see that it is calibrated correctly. Some cameras
underexpose and some cameras overexpose. How do you know that when your camera is set to 100 ISO that it’s really exposing for 100 ISO? This simple test will verify that your camera is recording exposure properly.

Things you need:

- DSLR
- Grey card
- Flash meter
- Light (studio, sunlight….)

First thing you need to do is capture an image of a grey card. For this example we will use a studio flash bounced into an umbrella.
Using your flash meter set the ISO to 100 (or whatever your cameras lowest ISO is). We want a flash output of F8 reading on the grey card. Get this as accurate as possible, not F8.3 or F5.62.

Keep reading….