Canvas, metal or paper: choosing a print.

The surface is part of the photograph.

A screen makes its own light. Every print reflects the light already in the room, and how it does that is decided by what the picture is printed on. That single difference is why a file that looks perfect on a phone can look flat, or harsh, or oddly plasticky, on a wall.

Three things vary between surfaces and everything else follows from them. Texture: whether the surface is physically smooth or woven. Gloss: how much light bounces straight back at you rather than scattering. And black point, which is how dark the darkest part of the print can get, because a matte surface scatters light in every direction and cannot hold a black as deep as a glossy one.

Those three settle sharpness, contrast, saturation and how skin reads. If any of the vocabulary is new, the plain definitions live in my photography terms glossary.

Canvas: texture, and what it forgives.

A canvas print is pigment ink laid onto coated woven cloth, then stretched over a wooden frame. The weave is really there. Run a finger across it and you feel the threads, and light hitting it scatters in every direction, which is why a canvas shows almost no glare from any angle.

That weave does something specific to a portrait. It interrupts the very smallest gradations, so single hairs, eyelashes and pore-level skin texture all read a touch softer than they do on paper. The blacks lift a little and the contrast eases. The whole picture becomes gentler.

Whether that is a gift or a loss depends on the photograph. For a warm, softly lit portrait it is a gift: skin looks like skin rather than like a diagram of skin, and nothing in the frame gets exaggerated. For a picture whose entire point is precision and snap, it is a loss.

Two practical notes decide most canvas regrets. Small canvases rarely work, because a small object is looked at from close up, and close up is where the weave competes with the subject. And a gallery wrap folds an inch and more around the sides of the stretcher, so the shoulder you liked ends up around the corner. Both are covered in my note on print sizes and cropping, and both are trivial to plan for.

Metal: contrast, and what it exposes.

A metal print is not printed on top of the panel. The image is gassed into a polymer coating bonded to sheet aluminum under heat, so the picture sits inside the surface rather than on it. Nothing can flake off and it wipes clean, which is why it turns up in kitchens and hallways.

Optically it is the opposite of canvas. Light passes into the clear coating, reflects off the bright base underneath and comes back out through the image, so a metal print appears lit from within. Blacks go very deep, whites glow, color saturates. On a brushed or silver base the metal shows through the lightest areas and adds a metallic sheen.

Applied to a face, all that amplification cuts both ways. Redness gets redder, skin texture sharpens, and any retouching that was a shade heavy stops being invisible. Metal rewards a photograph built around contrast and punishes one built around softness.

Then there is the room. A high gloss panel is a mirror when it faces a window, and no amount of loving the print survives looking at your own reflection standing in it. Satin and matte metal finishes remove most of that, at the cost of some of the punch that made you want metal.

Where metal genuinely wins is hard-lit black and white: a graphic, high contrast frame with real shadow in it looks extraordinary on a glossy panel, and black and white work of that kind is part of the fine art in my boudoir gallery.

Fine paper: the widest range of all.

Fine art paper is cotton or high grade cellulose fiber, pH neutral, made to hold pigment ink without yellowing. It comes in two broad families and the difference between them matters more than the brand on the box.

• Matte rag has a slight tooth and no sheen. It gives the gentlest roll-off from highlight into white and from shadow into black, so transitions across a cheek or along a jaw keep every step. It has a drawn, almost charcoal quality, and a shallower black point than any glossy surface.
• Baryta and lustre papers carry a smooth mineral coating that gives a much deeper black and more apparent sharpness, closer to what you saw on the screen, while keeping far more subtlety than metal. It is the traditional surface of the darkroom print and it is hard to beat for a portrait that will be looked at closely.

What paper does better than anything else is gradation. A portrait is mostly gradation: the place where a lit cheek turns into shadow carries more information about a face than any edge in the picture. Canvas texture and metal contrast both compress that transition slightly. Paper keeps it, and that is why the format survives every trend.

The cost is that paper needs a frame, a frame usually means glass, and glass is a second reflective surface added right back on top. Low reflection glazing is worth it on anything you stand in front of. Matte non-glare glass scatters the reflections and a little of the picture with them, so keep it for pieces hung well away from you.

The room decides before you do.

Stand where you will actually look at the picture and answer three questions. They settle the choice faster than any comparison chart.

Where is the light coming from?

If the wall faces a window or a bright lamp, anything glossy will show you the window. Matte canvas, matte rag behind low reflection glazing, or a satin metal are the honest answers. If the wall is on a dim inner hallway with little natural light, the luminosity of a glossy metal or a baryta paper is the thing that stops the picture from going dead.

How far away do you stand?

Texture disappears with distance and reveals itself up close. A canvas across a room reads as a beautifully soft photograph; the same canvas at arm's length reads as cloth. Paper behind glass is the format for close looking, which is why it belongs at a desk or on a shelf. Metal holds up at every distance and only asks about the light.

How big is it going to be?

Size and surface are one decision, not two, because they trade against each other: bigger means further away means texture matters less. Work out the size first using the method on my wall art page, then come back here.

A portrait is not a landscape.

Almost all print comparison advice is written about landscapes, and landscapes want the opposite of what a face wants.

A landscape is built from high contrast, strong color and detail that benefits from punch, so glossy, saturated surfaces flatter it. Skin is the reverse: low in contrast, subtle, and with almost all of the important information packed into a narrow band of middle tones. Push a landscape harder and it looks better. Push a face harder and it starts to look like a medical illustration.

That single fact reorders the ranking. For portraiture, paper first, canvas second, metal for the specific pictures that were built for it. It also explains why a portrait with a soft, quietly blurred background usually wants paper: a shallow depth of field turns the background into pure gradation, and gradation is precisely what a textured or high contrast surface handles worst.

Black and white splits along the same line. A soft, tonal monochrome portrait belongs on rag paper, where the grays have room to breathe. A hard-lit graphic monochrome frame, where shadow is doing the composing, belongs on glossy metal. Both are black and white and they want opposite surfaces.

None of this applies to a photograph that never leaves a screen, which is most of them. The surface question only opens when one picture from a sitting gets singled out for a wall. Everything that happens before that point, and every choice that decides which picture it is, sits in my professional headshots guide.

Choosing in about five minutes.

Run these in order and stop at the first clear answer.

• Is the wall bright or facing a window? If so, rule out high gloss and choose between matte canvas and paper behind low reflection glazing.
• Is the picture soft, warm and tonal, or hard, graphic and high contrast? Soft goes to paper or canvas. Hard goes to metal or baryta paper.
• Will you stand within a few steps of it? If so, paper. Texture and weave are for distance.
• Should it read as a photograph or as an object? Framed paper reads as a photograph. Canvas and float-mounted metal read as objects.
• Is it going somewhere humid, hot or handled, like a kitchen? Metal, without hesitation.
• Is it black and white? Ask whether the shadows are open or slammed shut, then re-run the second question.

Whatever you land on, see the surface itself before you commit to a large piece. A few minutes with a sample held against the wall, in the light it will actually live in, settles arguments that no amount of reading ever will.

A wall is not the only ending, either. A picture that belongs to you rather than to a room often has a better home in a book, a different object with a different job, argued on my page about albums and heirloom books. Custom albums, fine prints and gallery canvases are all available, and the surface is the last decision rather than the first, which is part of why my investment page keeps that discussion on the phone.