Photographing jewellery and small products

A polished surface is a mirror, not a subject

The first thing to understand is that you are not lighting the metal. You are lighting whatever the metal reflects, which is your room — including you, your camera, and the lamp.

This is why a bare bulb pointed at a ring produces a hard white dot and black everywhere else: the ring is showing you a small bright thing surrounded by a dark room. The answer is to give it something large, even and bright to reflect.

In practice that means diffusion. A cheap light tent works. So does a sheet of tracing paper or baking parchment between the lamp and the product, or a white bedsheet over a window. The larger and softer the source relative to the object, the smoother the highlight running along the metal — and a smooth graded highlight is what reads as expensive.

Focus: the problem nobody warns you about

Close up, depth of field collapses to millimetres. Focus on the front of a ring and the back is already soft. Phone cameras hide this with processing; a real camera at a wide aperture does not.

Two fixes, both free. Stop the aperture down — f/8 to f/16 buys you depth at the cost of light, which a tripod and a longer exposure pay for. And move slightly further back, then crop in, rather than pushing the lens as close as it will go.

For a hero shot where everything must be sharp, focus stacking is the professional answer: several frames focused at different distances, combined afterwards. It is worth it for a flagship product and not worth it for a catalogue of fifty.

• Use a tripod. At these apertures the shutter is too slow to hand-hold.
• Use a timer or remote so pressing the button does not shake the shot.
• Turn off any beauty or scene processing on a phone; it invents detail on metal.

Chains, prongs and the cutout problem

A fine chain is, to any segmentation model, close to what hair is: a subject far thinner than the surrounding context, with background visible through and around it. Some of it will be genuinely semi-transparent at the pixel level.

This is where the background you shot on decides whether a clean cutout is even possible. A silver chain on a white background gives the software almost nothing to separate — low contrast, similar brightness, and a boundary that is partly guesswork. The same chain on a mid-grey or a soft colour separates cleanly, because there is a real difference to find.

That is the counter-intuitive part worth remembering: if the finished image needs a white background, do not shoot on white. Shoot on something contrasting and put it on white afterwards. You get a clean edge instead of a chain that dissolves into the backdrop.

Colour and metal tone

Gold, rose gold and silver are the product. If your white balance is off, you are selling the wrong item — and colour is a leading cause of jewellery returns.

Set a custom white balance or include a plain white card in one frame and correct from it. Avoid mixing daylight with a warm bulb: the two colour temperatures land on different parts of the same reflective surface and cannot be separated afterwards.

Photograph the metals separately if you can. A gold and a silver piece in one frame will always be a compromise between two corrections.

Scale, and the shot most sellers skip

Small products have a persistent problem: photographed alone on white, a pendant could be two centimetres or ten. Buyers cannot tell, and the ones who guess wrong return the item.

Include at least one shot with unambiguous scale — worn, in a hand, or beside something everyone recognises. It costs one photo and removes the single most common reason a small-product listing generates a return.

Processing a jewellery catalogue

The workflow that survives: shoot on a contrasting background under one large diffused source, correct colour from a reference frame, cut out, then place everything on the same field at the same crop.

Cutting out is where an automatic tool earns its keep — and where a bad one is obvious, because chains and prongs are exactly the detail a hard-edged cut destroys. Judge any tool on your thinnest chain rather than on a solid pendant, and look at the result on a dark background, where a pale halo around the edge shows up immediately.

Cutola keeps partial transparency at those boundaries, which is what stops a chain turning into a jagged line. If you want a fair test, send it your worst one.