In a long room of framed landscapes, the pictures nearest the windows look flat and faintly silver, while those in the middle seem to glow from inside. A sheet of glass turns into a pale window of its own, and a varnished sky throws back a bright streak exactly where the clouds should be. If you are looking into lighting installation Salt Lake City for a wall of paintings, the questions worth asking come from how the pictures were meant to be seen.
My interest is in the long habit behind that question. Western landscapes were painted for particular kinds of rooms and particular kinds of light, and a picture can lose much of its meaning when it is lit by whatever happens to be nearby. I’ll look at how glare and glow behave on an oil surface, how exhibitors lit big pictures before and after electricity, and how to plan the light for a wall at home.
Glare, Glow and the Skin of Varnish
An oil painting has a surface as well as an image, and the surface answers to light in ways a reproduction never does. Stand in front of a thick sky and shift your weight from one foot to the other. A pale streak slides across the varnish, swallows a distant ridge for a moment, and moves on. That streak is the room, reflected: the window, the ceiling lamp, you. It sits on top of the picture and has nothing to do with the paint beneath it.
Now step to the side and let the light come at the paint from a low angle. Ridges of thick color throw tiny shadows, a cloud edge turns from a smear into a built-up stroke, and a dry-brushed ground shows its weave. Light from straight ahead does the opposite and erases all of this, which is why a thickly painted canvas can look tired under a flat ceiling light and alive under a lamp set above and to one side. The same picture has been given two different faces.
A third effect is easier to miss. Light from high above and close to the wall drops the shadow of the frame across the top edge of the picture, a dark band that eats into the sky just where a Western painter put the brightest passage. Move the source farther out and the band shrinks, but the glare on the varnish grows. Anyone who lights pictures is always bargaining between those two problems, and the right answer changes with every canvas.
Look closer
- Move slowly left and right in front of a glazed picture and mark where the reflection slides across it.
- Find a heavy stroke of paint and see which side of it is lit and which side holds a small shadow.
- Look at the darkest corner of a landscape and decide whether you can read it or whether glare has covered it.
- Notice whether the brightest part of the sky is the painted part or a reflection of the room.
Skylights, Gas Flames and Darkened Rooms
For much of the nineteenth century, the best light for looking at pictures came from above. Galleries were often top-lit through glass roofs because overhead daylight is even and keeps the reflections off the wall, and paintings were hung with that source in mind. When daylight failed, rooms turned to gas flame and, later, to the early electric lamp, and anyone who has seen an older gallery lit by modern fixtures knows how differently the same pictures can read.
Exhibitors also learned that light was part of the show. The biggest landscapes were sometimes staged in dimmed rooms with controlled lighting, so that the sky appeared to glow and the viewer’s eyes were drawn into the distance. A picture that seems merely large in a bright hall can feel enormous in a darker one. Those displays belonged to the world of entertainment as much as of art, and they taught a generation of viewers to expect drama from a painted horizon.
Pictures Built for Dim Rooms
Albert Bierstadt and Thomas Moran are both widely known for luminous skies and glowing cloud edges set above deep, shadowed foregrounds. That contrast of dark and bright is part of what these canvases are about, and it works best when the surrounding room is quiet. Flood the wall with even light and the dark passages turn gray and the glow loses its point of comparison. These pictures were made to be seen in a controlled setting, and a little restraint in lighting them is often rewarded.
Later painters of the desert, Maynard Dixon among them, are widely associated with flatter, clearer shapes and plain, strong daylight, and pictures of that kind tend to hold up in more even illumination. The point is not that one approach is correct but that the painter’s way of seeing shapes the light a picture wants. It is also worth asking who the original audience was. Many of the grandest Western canvases were seen by people in distant cities under theatrical light, while people who lived in the West read their own country by plain daylight, which is rarely as dramatic as a lit canvas.
Planning the Light for a Wall of Paintings
A home is not a gallery, but the same few ideas apply, and they are easier to think about before anything is installed than after.
Start With the Surface
Look at what the pictures are made of before you look at the ceiling. A glossy varnish or a sheet of glass will mirror any light that sits in front of it, while a matte surface forgives more. Hold a small flashlight at several angles to a picture and see where it glares and where it does not. That simple test tells you where fixtures should go and, just as usefully, where they should not. In a bright, dry mountain city the larger worry is often daytime sun through a big window, so notice where sunlight lands on the wall at different hours before you decide which wall should hold your best pictures.
Keep Light Off the Fragile Things
Watercolors, pastels, drawings and photographs are more sensitive to light than oil paintings, and strong light over many years can fade them. Keep such works away from windows and out of bright, concentrated beams, and ask a framer or a conservator about glazing and display for anything you care about. If a work is already faded or damaged, it needs a conservator, not a home remedy.
Bring in a Licensed Electrician for the Wiring
Choosing where light should fall is your job. Running wire, cutting into walls and ceilings, adding fixtures and changing what a circuit feeds are work for a licensed electrician, and your local building department can say what approvals are involved. A good electrician will ask what hangs on the wall, how the room is used and where people stand to look, then explain what the wall and the existing wiring will allow. Ask how the light will fall across the pictures, and whether a dimmer will let you lower it in the evening.
Before You Pack Up
Next time you stand in front of a picture you love, step to the side and watch the glare slide off the varnish. Somewhere in that moving patch of light is the angle the painter was imagining, and the wall behind it, waiting to be lit.