A snoot is a cylindrical or conical tube fitted over a light source to narrow its beam into a tight, controlled spot. By blocking light from spilling sideways, the snoot produces a small pool of illumination with a hard or semi-hard edge depending on its length and inner finish. Snoots are common tools for hair lights, dramatic accent lighting, and isolating small subjects against dark backgrounds, and they are part of nearly every studio photographer’s grip kit.
The effect of a snoot depends on its proportions. A short, wide snoot produces a soft-edged circle of light with some falloff at the rim. A long, narrow snoot concentrates the beam tightly and produces a sharper edge with deeper falloff, almost like a theatrical spotlight. A honeycomb grid placed at the snoot’s mouth tightens the beam further by absorbing rays that travel at oblique angles, leaving a more cylindrical column of light. Grids are commonly specified in degrees, with 10-degree and 20-degree grids being the most common for portrait work.
Snoots are usually mounted on a strobe with a reflector dish, but they also work on a speedlight using brand-specific mounts or universal stick-on systems like MagMod. The light source matters because soft modifiers like a softbox are the wrong base for a snoot; the snoot wants a small, hard, point-like source so the beam stays clean. Continuous lights including LED panels and Fresnel fixtures use the same principle, often built directly into the fixture as adjustable spotting.
Typical uses include placing a hair light above and behind the subject in a portrait, lighting a single product on an otherwise dark set, drawing a tight pool of light onto a face during a dramatic editorial setup, and concentrating fill on a specific corner of a still life. Outdoor portrait photographers use snoots and grids on portable strobes to keep their light off the background so that a colorful sky or distant landscape remains correctly exposed by ambient.
Common pitfalls include placing the subject too close to the snoot, which produces an obvious hot spot, and using a snoot when feathering a larger source would have done the same job with more controllable falloff. Snoots are inherently inefficient because they discard most of the light, so they should be reserved for moments when the look they produce is the goal. For broader, lower-contrast lighting, a flagged light modifier or a barn-doored softbox is usually a better choice.
DIY snoots made from black foam, cinefoil, or even cereal boxes wrapped around the flash head work surprisingly well for speedlights on location. The principle is the same as a commercial unit. What matters is that the inside is matte black so internal reflections do not soften the beam, and that the tube is long enough to actually constrain the angle of the light leaving the source.