Secrets of ISO, Exposure and Noise

blonde runner

The purpose of this article is to clear up myths and misinformation about image exposure, ISO, and noise. So, what is exposure exactly? Exposure is simply the amount of light reaching your sensor or film in a given amount of time. The amount of light reaching your sensor is determined by the length of time the camera’s shutter is open, and the size of the opening in your selected lens model.

Rolling Shutter Explained

Northern House Wren

Rolling shutter is a term used to describe how data is transferred from an electronic sensor into the camera’s memory as an image. When you snap the shutter button, a series of actions is placed in motion and light hits the sensor to create an image. However it takes time for the camera to “roll” over the entire sensor to read the data that continues to be captured until the entire sensor has been read.

A Diamond in the Rough: Lumix DMC DS50

Lumix DMC DS50

Another awesome visit to the Rocky Mountain Arsenal National WIldlife Reserve to test my newest acquisition, the Lumix DMC ZS50 camera with 24-720mm Leica glass! (I also took along my new Pentax IQ Zoom 105 WR film camera, but I haven't had those negatives processed yet, so that's a story for another time.

The Cold Moon

Sunrise on the Sangre

The cold moon, the last full moon of the year was a good excuse to get out at sunrise yesterday. Some wispy clouds ultimately obscured my view, but it was a beautiful morning and I think I got some excellent images anyway, plus a couple of unexpected bonus wildlife pictures.