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What do you think plein air painting is?

Midsummer, 24X36, oil on canvas, $3,188 includes shipping and handling in continental US. This painting was completed on site over several days.

“Do you have a good source for the definition of plein air painting?” a reader asked. “Can the painting be finished in the studio? Can it span a couple days in execution?”

More useless pontification has been done on this subject than almost any other. I’ll start by pointing Tim to this essay by John Morra examining the nature of plein air painting. It stands alone, but let me add a few of my own thoughts.

Main Street, Owl’s Head, oil on archival canvasboard, $1623 includes shipping and handling in continental US. This was done on site on one long day.

Many of us have been in a competitive plein air event and seen something passed off as outdoor painting that was clearly not painted from life. How do we know this? Because we were there. The atmospherics were wrong, that person was never in that spot, or—mirabile dictu—the oil paint has already set up hours after completion.

But mostly, we know because there’s a sort of studied perfection to a studio painting that is never there in plein air. A painting done on site is never quite as innovative as a studio landscape. Plein air can often seem labored or overworked because the artist is trying so hard. This is not necessarily a bad thing; it’s destructive when plein air events reward stylishness over content and design, as they so often do.

Lobster pound, 14X18, oil on canvas, $1594 framed includes shipping and handling within the continental US. I’ve occasionally thought about brightening this up in the studio, but I think that would ruin its genuine moodiness.

Plein air or alla prima?

Plein air means it was done outside. Alla prima means it was done ‘on the first strike’. Plein air is a description of where a painting was done; alla prima is a technique. There is no such thing as plein air style, nor is something that’s painterly more authentically plein air than something that’s linear. Can we all stop apologizing for liking realism?

Vincent Van Gogh is the personification of painterliness. Rackstraw Downes is the personification of linearity. They’re both also definitive plein air painters, even though their work looks nothing alike.

Waiting to play (Boathouse), oil on archival canvasboard, 14X18, $1275 framed includes shipping and handling in continental US. This is a painting that’s experimental and observational rather than stylish.

Can the painting be finished in the studio?

This is where the arbitrary rules of plein air events start to influence the actual practice of plein air painting. To say that a painting should be ‘substantially’ finished in the field is meaningless; to say it should be done 90% in the field is just as meaningless. What are they measuring? Time? The volume of paint? The area of the canvas?

I almost never finish plein air work in the studio. I invariably end up overpainting what I most loved about being outdoors. But I have friends who touch up their plein air paintings at events. If they feel that gives them a better result, more power to them. As my buddy Brad Marshall once mused, “The clients don’t care how much of it was painted outdoors; why should I?”

Sketch or painting?

Composition is one of the hardest skills in painting. The rules of composition are the same whether the piece is done in studio or in the field, and the smart plein air painter puts as much effort into the set-up of a plein air painting as he or she would for a studio piece. That’s different from the plein air sketch, which is about capturing an impression.

How long can I work on it before it stops being plein air?

“A plein air painting should be painted quickly,” Morra wrote. This is one point on which I disagree. Fast, expressive brushwork is the trope of our age, but it’s by no means the only way to paint.

I’ve done many events where we’re given two or three days to produce one work. Sometimes I paint two paintings, but more typically, I squander all my time on planning and just paint one. I inevitably like my work better than when I churn out fast sketch after fast sketch.

In fact, modern plein air painting is often so fast it sacrifices drawing. A badly drawn house or person is a rookie mistake. My own preference is for fast painting paired with meticulous drawing. Want a great contemporary example? Check out Canadian painter Marc Grandbois.

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Four most useful types of paint brushes

Alla prima oil painters usually favor hog’s bristle brushes. These are far less expensive than softer hairs like sable. They are the only brushes that spread thick paint smoothly and evenly, making for the freshest alla prima technique. There are some good synthetic brushes on the market, but none of them are quite as stiff as a good natural bristle brush.

Bristle brushes tend to form a flag (a v-shaped split) at the end over time. However, if the brush is made properly, with good interlocking bristles, it will have a natural resistance to fraying. Because field painters often go long periods without being able to clean their brushes, durability is important.

Don’t use that as an excuse to not clean your brushes thoroughly. Rinse and wipe out all the solids and wrap them tightly until you can get to a sink. When you do wash them, use a good fatty soap and make sure all the paint is out of the ferrule (the metal part), or they’ll lose their shape. A brush that’s got paint clogging the ferrule is impossible to resurrect. (My daughter’s brush soap, which is very good, is available here, but she will not be shipping more soap for the next few weeks.)

Flats:  

Flat brushes make an immediate, energetic mark. They’re excellent for fast, powerful surface work, long sweeping strokes, and blocking in shapes.

Used on their sides they also make great lines, far more evenly than a small round can do.

I like an 8-10 flat, because I tend to paint with large brushstrokes, but what size you use will depend to some degree on your painting style.

A bright is a just a stubbier, less-flexible version of a flat. It’s great for short, powerful strokes or situations where you want a lot of control. Your painting, your choice.

Rounds:

A round is a more lyrical brush than a flat, and is a classic tool for painterly surface marks. It can be used to make lines that vary from thin to thick. You’ll need a big one (perhaps an 8 or 10) for big, bold brushwork, and a wee pointed one (such as a 2) for fine detail.

My uncle used to say, “be true to your teeth or they’ll be false to you.” The same is true of small bristle rounds. They lose their points very quickly if you don’t clean them carefully.

Filberts:

If I was stranded on a desert island with just one brush, it would probably be a size 8 filbert. Its great advantage is the variety of brushstrokes it makes. It’s can make single strokes that taper, such as in water reflections. Its rounded edges are good for blending. Set on its side, it makes nearly as good a line as a flat.

Double filbert or Egbert:

This is a ‘novelty’ brush like a dagger or fan brush, but it’s one I use all the time. It’s a lyrical brush that has a lot of expressive quality. Hold it at the butt end and swing it like a baton, and suddenly your painting will sing.

However, if you don’t clean it carefully it will splay and develop a split at the end, which renders it useless. I speak from sad experience here.

A bonus: I’ve been painting walls for the last week, and my favorite new brush is the Wooster Shortcut. Better control than a long-handled brush, easier to clean than China bristles, and with modern latex paint the coverage is just as good.

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