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A portrait is an encounter before it's an image. A focal length, a light, a gaze — and everything plays out in the trust between the lens and the person.
Portrait photography is an image whose main subject is a person, captured not only for their physical features but for what they give off — character, presence, sometimes vulnerability. It's probably the oldest and most demanding photographic genre: framing a face isn't enough — you have to reveal someone. Several sub-genres exist. The posed portrait, inherited from the studio (Richard Avedon against white seamless, Irving Penn and his narrow corners), builds a stripped, controlled, almost sculptural image. The environmental portrait integrates the subject's setting to tell who they are: Arnold Newman photographing Stravinsky with his piano, Annie Leibovitz staging her models inside their universe. The documentary portrait captures the human in a social context — Dorothea Lange's Migrant Mother (1936) remains the absolute icon of the genre. Finally, the street portrait, in Vivian Maier's lineage, catches the stranger on the street, sometimes with consent, sometimes in the moment. Focal lengths usually hover around 85, 105 or 135 mm, which flatter features without distorting them. But beyond technique, the portrait rests on three human pillars: the rapport with the model, consent, and direction — knowing how to settle, listen, direct without freezing.
Three scenarios, three ways to think a portrait. Studio portrait, 85 mm f/2.8: you set up a softbox at 45° to the subject, slightly above. You're hunting the triangle of light under the eye opposite the source — that's Rembrandt lighting, the most classic and most flattering. Meter with a flashmeter, stop down to f/2.8 or f/4 to keep both eyes sharp, sync at 1/160 s. The background is neutral, attention goes entirely to the face. Environmental portrait, 35 mm f/4 at the subject's home: here you bring in the setting. A craftswoman in her workshop, a musician in her living room. The 35 mm lets the frame breathe, f/4 keeps context legible without making it clinical. Find soft light near a window, place your subject at 45° to the source, and compose by using the room's elements as leading lines toward the face. Street portrait, 50 mm f/2: the golden rule is consent. You spot, you approach, you explain in two sentences what you're doing. If the person agrees, you work fast: a step back so you don't crowd them, focus on the nearest eye, rule of thirds to place the gaze. Three frames maximum, you say thanks, you give a contact if asked. The 50 mm stays discreet and gives a natural perspective, close to human vision.
Pulling out the 24 mm for a face. Wide-angles distort. At 30 cm from a face, the 24 mm stretches the nose, splays the ears, pushes the eyes back — a caricatural effect that's rarely flattering. Unless the creative intent is owned (expressive portrait, forced perspective), stay above 50 mm full-frame equivalent, ideally 85 or 105. If all you have is a wide-angle, step back and crop at capture, don't sacrifice the proportions.
Not aiming for the eye. In portrait, focus goes on the nearest eye, period. Not the cheek, not the nose, not the eyebrows. Activate your camera's eye AF (Eye-AF) or switch to single-point on the eye. At wide apertures (f/1.4–f/2), an eyelash of misalignment on the wrong eye ruins the photo.
Ignoring the surroundings. A portrait with no signs of life — sterile background, blank wall with no intent, flat lighting — turns into an admin ID photo. Even in a studio, one detail (background texture, prop, chosen wardrobe) anchors the person. And in environmental work, check your background before firing: no pole growing out of the head, no green neon in the corner, no blurry passerby cluttering the composition.
Focalis-X automatically detects faces in your image and runs a portrait-specific evaluation grid. The engine analyzes the lighting pattern (Rembrandt, butterfly, split, flat), checks the sharpness of the nearest eye, measures contrast on the face, and evaluates composition (gaze placement on the thirds, breathing room in front of the subject, balance of the setting). It flags focal-length distortion, closed or blurred eyes, and backgrounds that interfere with the read. The verdict is editorial, not technical — we tell you why it works or doesn't, not just a cold score. Analyze a photo →
The classic answer is 85 mm full-frame equivalent: it flatters features without distorting them, isolates the subject from the background with beautiful bokeh, and keeps a comfortable working distance (about 2 meters for a chest-up frame). 105 mm and 135 mm are even more flattering for tight portraits. 50 mm stays versatile and natural, perfect for street portrait. Below 50 mm you enter environmental portrait, where the setting matters as much as the face. Avoid anything below 35 mm for tight framing: distortion becomes visible and rarely flattering.
In France, image rights are protected by article 9 of the Civil Code: any recognizable person must consent to the publication of their portrait, even one taken in a public place. For private use (a personal album), consent is implied if the person poses. For public distribution (social networks, exhibitions, publications), you need a written agreement, ideally a model release specifying use, duration, and territory. For minors, both parents' authorization is mandatory. For commercial use (advertising, sales), a model contract is essential. On the street, always ask before publishing, even if you fired the shutter in passing. (Other jurisdictions have different rules — the U.S. and U.K. tend to allow more leeway in public space, but image rights for commercial use remain restrictive almost everywhere.)
Because a smartphone's front camera is an ultra-wide-angle — often around 23 mm equivalent — designed to fit a lot of scene in, not to flatter a face. At arm's length, proportions get distorted: bigger nose, elongated forehead, receding chin. To get closer to a real portrait, switch to the rear camera with the main lens (24 or 28 mm) or telephoto (52 or 77 mm on iPhone Pro), have someone photograph you from 1.5–2 meters, and choose soft window light over front flash. The result will be incomparably more natural and flattering.
Written by The Focalis Team