Expose Your Triange – ISO
Does anybody even know what ISO means? A few, maybe! The acronym stands for International Standards Organization. It started out as an industry standard scale for measuring the sensitivity of film to light. If you’re an old-time photographer who used film cameras, you’ll recall that the films you purchased were rated: ISO 100 for bright outdoor light, ISO 200 for cloudy days, and even ISO 400 for evening and inside (but you likely still needed a flash). Today, that ISO rating is applied to the sensor on your DSLR (digital single lens reflex) camera. If you’ve ever looked inside the body of your camera when the lens is off, you can see the sensor at the back of the body. When you push the shutter and the curtains open and pass across the sensor, it captures the light bouncing off the surfaces you are pointing at and captures the image. You can learn more about that in your owner’s manual if interested. Basically, setting ISO tells your camera how much light...