Was Vermeer using a camera obscura?

The optical evidence — small circles of confusion in the highlights, slightly flattened perspective in the interiors — is consistent with it, and the 2017–2020 examination of the Milkmaid's underpainting showed a simpler, bolder structure than the finished surface suggests. Whatever the tool, the layer order is conventional.

What should a copyist not do?

Do not try to match the surface in one pass. Almost every failure in a Vermeer copy comes from mixing the final greyish-blue wall colour rather than building it from a warm grey with a cool glaze over it.

A note in 6 layers

Copying Vermeer: the glaze stack in The Milkmaid

Stand in front of the Milkmaid and the first surprise is how little paint there is. The lead white is thin, the blues are thin, and the famous light comes from a stack of films each doing one job.

Section: Copy
Support: Oil
Drying: 复原层次需要 9–12 天干燥
Published: 6 September 2026
Byline: By The Easel Desk

Paint film cross-section: Warm grey ground 6h, Umber monochrome 20h, Dead-colour 30h, Ultramarine depth 30h, Reds and ochres 24h, Final satin glaze 24h — Ordered from the bottom of the film upward. Band height is that layer's drying time; the darker the band, the more oil it carries. The right-hand scale is cumulative drying hours.

What the surface actually shows

The wall behind the figure is not one colour. It is a warm grey modelled with white and umber, then cooled with a thin glaze, which is why the shadow behind the window has warmth in it while the light wall reads cold. Mixing that final colour directly in one pass flattens it immediately.

Look at the bread and the milk stream. Both are almost pure lead white with a minimum of vehicle, applied at the very end over dry layers. The white is not painted white — it is the only place the original ground is allowed back through.

Rebuilding the apron blue

The apron is the exercise worth copying. Start with the monochrome umber drawing, carry the value range as far as it will go in earth alone, then bring in a cool grey with lead white so the mid-tones are already slightly blue-grey before any blue pigment arrives.

The ultramarine goes on as a glaze at roughly one part pigment to four parts medium, thinned so that the brush leaves no drag. Two thin passes are better than one heavy one; in the shadow folds the blue is laid over the warm underpainting rather than next to it, which is why the darks still look luminous.

The order that matters

Two rules survive from this picture. First, the coolest and most saturated colour goes on last and thinnest. Second, no highlight is painted until every shadow around it is finished — the milk stream is believable because the shadow under the jug was resolved first.

If you keep only one habit from a Vermeer study, keep the final overall wipe: a single warm glaze over the whole surface, then a clean rag drawn across the highest lights. It is the cheapest way to make a student painting look like it belongs to the same century.

Copy schedule for a 30 × 25 cm study

Session	Work	Medium	Drying
1	Tone ground, block shadow shapes	OMS + umber	overnight
2	Dead-colour, whole value range	Lead white + umber	30 h
3	Apron and jacket darks	Ultramarine glaze 1:4	30 h
4	Bodice reds, table cover	Vermilion glaze	24 h
5	Highlights, final satin glaze	Thick white + linseed	—

Layer schedule

#	Layer	Technique	Mix	Dry
1	Warm grey ground	Chalk-glue ground, ochre-toned	#EFEAE1	6 h
2	Umber monochrome	Full drawing in earth pigment, no white	#6B4A2F	20 h
3	Dead-colour	Lead white plus umber, cools the mid-tones	#B39B7D	30 h
4	Ultramarine depth	Thin natural ultramarine in apron shadow	#2E4A6B	30 h
5	Reds and ochres	Vermilion in the bodice, glazed not mixed	#C0392B	24 h
6	Final satin glaze	Overall warm glaze, wiping the bread highlight	#D9A15B	24 h

Questions that come up

Was Vermeer using a camera obscura?: The optical evidence — small circles of confusion in the highlights, slightly flattened perspective in the interiors — is consistent with it, and the 2017–2020 examination of the Milkmaid's underpainting showed a simpler, bolder structure than the finished surface suggests. Whatever the tool, the layer order is conventional.
What should a copyist not do?: Do not try to match the surface in one pass. Almost every failure in a Vermeer copy comes from mixing the final greyish-blue wall colour rather than building it from a warm grey with a cool glaze over it.

Materials and safety note

Drying times assume a ventilated studio at 20 °C and 50 % relative humidity; cold or damp conditions extend them substantially. Solvents and metal-bearing pigments (lead white, cadmiums, cobalts) belong in a ventilated space, out of prolonged skin contact, and lead-bearing paint does not belong on anything a child handles. This page is craft information, not materials-safety, health or conservation advice.