Articles written by Alex Cooke
Don't worry, this isn't a geometry lesson. The exposure triangle is a common way of associating the three variables that determine the exposure of a photograph: aperture, shutter speed, and ISO. One must balance all three of these to achieve a desired result, an adjustment of one requiring adjustments of at least one of the others. They do not only affect exposure, but are also the largest determiners of the global appearance of an image; thus, their mastery is absolutely crucial both for technique and composition.
Not long ago, learning and critiquing photography was done almost exclusively in person. With the rise of the Internet, we saw a fundamental shift in how photographers interact with one another. Yet, even with the opportunities afforded by the web, there is so much more to gain by spending time with fellow photographers in the flesh.
Two summers ago, I attended a music festival in Italy, where I had the opportunity to attend a master class given by Louis Andriessen, a prominent figure in new music composition. Classical musicians are known for striving for perfection, so when I opened one of his scores and found the following note regarding the ossias (alternate passages of music), I was struck:
For many centuries, scientists fought vehemently about the nature of light. Two sides debated a question pivotal to the development of physics: is light a particle or a wave? It wasn't until the 20th century that one of the most startling revelations about our universe came to prominence: light is both.