You are researching a camera lens when you scroll down the specifications and encounter a graph filled with curved solid and dotted lines. Some lines stay close to the top. Others fall toward the right side. Numbers such as 10…
What Is Lens Resolving Power in Photography
You may have heard photographers describe a lens as sharp, soft, detailed, or capable of handling a high-resolution camera. Behind many of those descriptions is an optical characteristic that receives far less attention: lens resolving power. Resolving power describes how…
What Is a Lens Sweet Spot in Photography
You may have heard photographers say that a lens becomes especially sharp at f/5.6, f/8, or another middle aperture. That range is often described as the lens sweet spot. The idea sounds simple: find the magic aperture, set your camera…
What Is Spherical Aberration in Photography
You focus carefully on your subject, use a fast shutter speed, and photograph from a steady position. Nothing appears to have gone wrong. Yet when you enlarge the photograph, fine details seem wrapped in a faint glow. Contrast is slightly…
What Is Minimum Focus Distance in Photography
You move your camera toward a flower, piece of jewelry, autumn leaf, or another small subject because you want to capture more detail. Everything looks fine at first. Then, as you move a little closer, the lens suddenly refuses to…
What Is Chromatic Aberration in Photography
You zoom into a photograph and notice a thin purple, green, blue, red, or cyan outline along the edge of a subject. The photograph may be sharp and correctly focused, yet those colored edges still appear. That is often chromatic…
What Is Vignetting in Photography
You take a photograph, look closely at the finished image, and notice that the corners appear darker than the center. Sometimes the effect is barely visible. In another photograph, the edges may look noticeably shaded, almost as though someone placed…
What Is Lens Flare in Photography
You point your camera toward a bright sunset and suddenly see pale circles, colorful shapes, streaks of light, or a washed-out haze across the frame. Sometimes the result looks magical. Other times, contrast disappears, and the photograph feels flat. That…
What Does a Fast Lens Mean in Photography
Photography has plenty of terminology that sounds more complicated than it really is, and a fast lens is a perfect example. A fast lens does not take photographs more quickly. It doesn’t necessarily autofocus faster, capture more frames per second,…
What Is Focus Breathing in Photography
You frame a photograph carefully, leave the zoom ring completely alone, adjust focus from something close to the camera to something farther away, and suddenly the composition seems to shift. The edges of the frame move. Your subject may appear…
