What follows is a guest post by Daniel Star (Boston University). All photographs are the author’s own. (Readers are encouraged to follow the links in captions for full-size, full-resolution images.) We’ve all seen it. Maybe we’ve done it. Maybe we’ve “liked” it. Someone takes a snapshot of a wonderful sunset with a smartphone and posts it on a social media site with the “#nofilter” hashtag. This is one of the most popular hashtags on Instagram, and it is now also used widely on Facebook and Twitter. The sunset was no doubt beautiful (sunsets tend to be beautiful), but it’s unlikely that the photograph itself was of a high quality – smartphone shots rarely are, and even a setting sun will tend to blow out highlights (bright regions in images, see below), leaving empty space in part of the photo. Perhaps this doesn’t matter, because the point of such a social … Continue reading →