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# Monday, March 15, 2010
Pastel as an Underpainting
Posted by richard

135-pastel_underpainting.jpg
The tone of the surface you choose to work on has a profound effect on the appearance of the applied pastel (see my January 19 blog post for more about that). Since most of our subjects are made up of diverse value and color relationships, choosing just one tone on which to work can be a challenge. Due to this, many pastelists have relied on various techniques of underpainting as a means of setting-up an understructure in advance of pastel application. Ever the inventive group, pastelists have experimented with a wide variety of methods and products for these underpaintings. This has opened pastel up to a variety of mixed-media techniques with the use of watercolor, gouache, acrylic, liquid pure pigments, acrylic and even highly thinned oil paints.

135B-pastel_underpainting.jpgA different medium does not have to be a prerequisite for pastel underpainting, though. Pastel itself is quite capable of producing a variety of beautiful effects. A common method is to lightly apply the desired pastel and then rub or smear it around the surface with the use of a rag or strong paper towel. Overuse of your hands should be avoided for health concerns, and be careful of generating pastel dust during this process; the biggest concern pastelists have is airborne pigment inhalation.

If a painterly look is desired, pastel can be wetted with water, paint thinner, gum turpentine or rubbing alcohol. Making pastel wet produces interesting effects as it drips and runs around the surface. The pigment pools and happy accidents occur. Remember that when pigment is wetted, it will appear brighter and darker. Once it dries, it will return to its original state. As exciting as these happenings can be, there are surface issues to be considered. Water on a highly rag surface or lightweight paper can produce wrinkles. If you plan to use water, it is best to have the paper mounted in advance of painting (see previous posts about mounting here and here). Rubbing alcohol can soften certain pastel surfaces that use an acrylic binder. Paint thinner and gum turpentine can have adverse effects on the appearance of certain pigments. Test for these in advance of painting by experimenting on a scrap of your preferred surface and mixing the solvents with the pastels you will be using. As long as the surface can tolerate the product being utilized and good archival techniques are employed, there is nothing to fear. Experiment, have fun, and enjoy the creative possibilities!

[pictured here] Pastel applied to Wallis paper [top] and then wetted with rubbing alcohol to produce a pastel underpainting.



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Monday, March 15, 2010 5:48:32 PM (GMT Standard Time, UTC+00:00)  #  Comments [0]
# Monday, March 08, 2010
The Aperture of Our Eyes
Posted by richard

134B-aperture-of-the-eye.jpgIn my post, "The Shutter Speed of Our Eyes," the shutter speed of a camera was compared to the human eye. Another feature of photography that can be compared to human vision is the aperture. In optics, an aperture is a hole that allows in light. As previously mentioned, the pupil and iris act like the aperture of a camera, regulating the amount of light that can travel through the lens into the retina. A better analogy would be that the pupil of the eye is "equivalent" to the diameter of a camera lens and the iris of the eye is "equivalent" to the aperture of a camera. In a dark environment, the pupils dilate (open) and in light, they constrict (close). If you look through a camera lens and dial the aperture setting, you will notice a similar dilation and constriction. On a camera lens, the numbers associated to aperture are defined as f-stops. This references the ratio of focal length to aperture diameter, creating a focal ratio or f-stop. A lower number defines a greater aperture opening, allowing in more light; a higher number, a smaller opening allowing less light to enter. Compared to a camera lens, the human pupil rests around 4 mm in diameter. In extreme dark, it dilates to approximately 8 mm (f/2.1). In bright light, it contracts to approximately 2 mm (f/8.3).

If you have experimented with depth-of-field in photography, you know that the higher the f-stop (smaller opening), the greater the depth-of-focus and the smaller the number (larger opening), the less depth-of-focus. When a photographer wants sharper focus from the foreground to the background, they use the maximum f-stop possible and focus on a near middle-ground object. Conversely, when just the subject is to be in focus, a minimum f-stop is selected, allowing everything in front and behind to fall out of focus. We experience a similar phenomenon in brightly lit scenes compared to dark environments. In extreme light, our eyes' "aperture" becomes smaller, creating sharper focus and an expanded depth-of-focus. In darker scenarios, our eyes' "aperture" becomes larger, creating softer focus and a contracted depth-of-focus.

As painters, understanding these tendencies allows us to better control our paintings' depth. Since the main area of interest is the place where focus occurs, it should have the sharpest edges and contrast details, giving us the ability to manipulate the viewer into perceiving our intentions. Remember that the human experience isn't the same as the camera’s. Since photography is heavily used as reference, it's wise to understand its comparisons to human sight, to use it when needed, and to be a vigilant, sensitive observer of everything around us.

Image info: The same scene photographed with a large and small f-stop aperture, demonstrating the change in focus depth-of-field. Look closely at the window behind the plant and the reflection on the table. The focus was set on the lip of the pot and only the aperture was changed.


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Monday, March 08, 2010 7:02:53 PM (GMT Standard Time, UTC+00:00)  #  Comments [0]
# Monday, March 01, 2010
The Lessons of Subject Matter
Posted by richard

133-subject-matter-lessons.jpg
The subject matter we are drawn to paint and how we ultimately portray it is as diverse as the human experience itself. We are each drawn to specific subject matter and even when two of us work from the same subject, we bring our own perspective to the portrayal. This is what makes painting so exciting.

The three broad categories of subject matter are: still life, portrait and landscape. Within these categories, of course, there are many subsets. Each has an aesthetic and sensitivity unique to its character. All of us have formed personal relationships with different subjects through our individual interactions with them, and we are capable of telling a story through this shared human experience. These perspectives form our attitudes and emotions when painting. By arranging and orchestrating the visual elements of the composition and utilizing a myriad of painting techniques, we make it individual.

In becoming a well-trained painter, each of these subject areas—still life, portrait, and landscape—provides a lesson and should not be overlooked due to a lack of motivation. You may not be attracted to the still life, uninterested in the portrait, or feel dispassionate about the landscape, but by practicing them you will polish technical skills that make you a more confident painter. A painting is a configuration of accurate shapes, a representation of lights influences, and a sensitive arrangement of colors. These exist in every representational painting, and for that matter every abstract painting. Individual subject matter is all composed of them. In that regard, everything we paint is all the same. Each subject does provide a heightened lesson, though. The still life teaches the importance of value. Within the confines of a relatively small distance, the influence of light and the manipulation of edge create form. The portrait teaches accurate drawing. The human likeness allows for no error. The landscape teaches color harmony. Natural light and its influence across nature’s palette help us to understand the relationship all colors have to one another. A wise instructor passed this thought on to me many years ago: “To learn value relationships, it’s the still life; to draw, it’s the portrait; and to become sensitive to color, it’s the landscape. Each has something to offer. Practice them often and then paint your passions!”

[pictured above] A portrait drawing demonstration of mine; just to prove that I still do my homework.




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Monday, March 01, 2010 4:40:08 PM (GMT Standard Time, UTC+00:00)  #  Comments [3]
# Monday, February 22, 2010
The Color Temperature of Light
Posted by richard

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As painters we understand that without light there would be nothing visible. Objects within our painting scenes have mass, a proximity to one another and a reflective quality. All of these elements work in conjunction with the light source to create what we see. There are two major components at work when we see: the eye and the mind. The eye is the camera and the mind the processer. Just like photography, the eye records the information and that information is then interpreted into a representative image by the brain.

Using photography as a means to better understanding what we see is helpful. Prior to digital photography, the proper type of film had to be used for the lighting condition. Daylight film was balanced for a mixture of sunlight and skylight. Tungsten film was for indoor situations that utilize artificial incandescence lighting. Film being an unintelligent product, lacking the ability to ascertain what it was seeing, allowed it to show the color temperature of the light source. If daylight film were exposed indoors, photographs would be extremely orange. Tungsten film when exposed outdoors would produce extremely blue casts. With the advent of digital, however, film became obsolete. The computer sensors built into the camera body read the light coming in through the lens and adjust to a standard called “auto white balance."

Unlike the camera, we associate information into the symbolic. From infancy, we compile this information into a belief system. When we see something, our mind quickly pulls from this stored information and identifies it. This produces a certain amount of bias and prejudice: skies are blue; trees are green; flesh tones orange. What we miss is the color temperature cast of the light. A house may be white, but only as white as the light striking it. This is a sort of “human auto white balance.” We don’t take the time to really look.

Becoming sensitive to the “quality” of light takes time and practice. You have to confront color prejudices that have taken years to accumulate. Open yourself up to the sensation of the light; compare different areas to each other and look for a shift in common colors. Ask yourself: Does the white house across the street look the same as the white paper in my sketchbook? If the color temperature of light continues to be difficult to see, try placing a good-sized white surface outside near your home, observe it at various times of the day during different seasons. Look for subtle color shifts. Over time, you’ll see them. And once you do, it will become easier to see the color of the light in every situation, making your paintings more successful.

[pictured above] In these side-by-side interior photos of a lamp, the image on the left represents Daylight film exposed with Tungsten light; the image on the right represents Tungsten film exposed with the same Tungsten light.



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Monday, February 22, 2010 2:40:32 PM (GMT Standard Time, UTC+00:00)  #  Comments [0]
# Tuesday, February 16, 2010
To Every Season
Posted by Richard

131-to-every-season.jpgFor most of the United States, especially east of the Rocky Mountains, winter has made its presence quite evident. Snowfalls have broken historic records and our dependence on public utilities has been severely tested. Hopefully the worst is over and for those of you adversely affected, life is getting back to normal.

The February issue of The Pastel Journal, with its theme on painting snow, couldn’t be more appropriate. This inspiring issue, filled with great information on how diverse pastelists paint snow and find inspiration during these months of winter, has been of special interest the past week. Whether you consider yourself a landscape painter or not, the white stuff has had its influence. If you haven’t found time to check out the current issue, be sure to pickup a copy.

Working this winter in my studio has reminded me of an issue that affects most painters but isn't often discussed: environmental influences. Even though our studios are removed from the sensory effect of the weather, time of year, and locale, it cannot be denied that they provide an influence on our work. This milieu, often unrecognized, leaves us confused as to why the motivation to paint a certain scene is gone. Painting a scene of a hot summer landscape may be near impossible in the mist of a severe winter storm. Traveling to exotic locales can be inspiring but prove difficult to paint after returning home. When there, the inspiration was high. There was clarity and passion. Once home, the motivation wanes. As inspiring as a desert setting may be while on a trip, it's hard to live at the beach and paint the desert.

Our environments have an effect. Embracing this can help to make us more productive, inspired and ultimately successful. There's more involved than the “how to” of the painting. The way we feel and what stimulates our senses plays its part along with the mechanics of technique. With winter’s strong presence right now, it may be best to embrace the season and understand the influence it's having on our painting. Spring is right around the corner with renewal and optimism and then the dilemma of how to handle green will re-emerge—it's always something! To everything—turn, turn, turn. There is a season—turn, turn, turn.

Photograph: Winter’s presence in Southern Oregon



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Tuesday, February 16, 2010 4:18:14 PM (GMT Standard Time, UTC+00:00)  #  Comments [1]
# Monday, February 08, 2010
When the Light Comes Through the Trees
Posted by Richard

130-sky-holes.jpgThe sky is the giver of light in the landscape and the earth the receiver. This simple observation has been at the core of understanding the landscape since artists started painting. John F. Carlson in his popular book, Carlson’s Guide to Landscape Painting, separates the basic landscape into four sections of light and dark value: the sky, being the source of light, is the lightest; the flat earth of fields and bodies of water is second; the angled earth of hills and mountains is third; and the upright nature of trees and vegetation makes them the darkest. Of course there are situations that dispute this theory, but in general it's a good observation and has helped many to become more sensitive to the quality of light and its reflective abilities, which is what makes us better painters.

Having dark, upright trees against a light sky produces one of the most beautiful and difficult to handle situations in the landscape: sky holes. The amount of visible sky holes depends on the density of the foliage, but as an artist friend often said, “You have to give the birds a place to fly in and out.” It's commonly believed that once a value and color are selected for the sky area, the sky holes should be painted with the same tone.

However, when this is done, the holes appear too light and bright, looking more like ornaments on the tree instead of light traveling through the tree. This is where keen observation—and a good understanding of the physics of painting—will prove invaluable. The appearance is due in great part to two conditions. First, the light behind the tree has to travel through the mass of the tree to your eyes—a tunnel of sorts. Along that path, it's diffused and scattered, and thus becomes weaker. Second, the relationship it will have with the darkness of the tree can make it appear lighter than it really is (refer to my previous blog on simultaneous contrast). Since these sky holes have to penetrate the bulk of the tree, and are visually isolated by the darkness of the tree, the pigments chosen to portray them should be slightly darker than the rest of the sky. The larger the sky hole, the lighter its center can be.

Another problem is the definition with which these sky holes are painted. Overly sharp edges flatten out the tree, making it look like a piece of paper that has had holes cut out. This can be remedied by smearing one edge of the pastel mark with the flick of your finger. This better translates the illusion of light bouncing its way through the tree space.

By implementing these simple remedies, our painted trees will appear more lifelike, providing my friend’s birds a place to fly in and out.

pictured: Pastel, “the poetry of trees”




Monday, February 08, 2010 9:55:53 PM (GMT Standard Time, UTC+00:00)  #  Comments [3]
# Monday, February 01, 2010
That Special Color
Posted by richard

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Color and light are the two biggest attractions artists mention when describing what draws them to subject matter. They are synonymous; one doesn’t exist without the other. Science has proven that no two of us perceive color in exactly the same way. The complexity of the human eye, combined with environmental and cultural influences, make each of us unique and individual artists.

As pastelists, we have a rainbow of colors from which to choose in our paintings. A well-structured palette will represent the full spectrum of the color wheel in a full range of light and dark values completed with the addition of an assortment of weaker grayed tones, which are easily mixed with paint but problematic to the pastelist. This affords the pastel painter the ability to work without limitation (see previous blog post about palette setups). Over time our palettes expand, we make additions and subtractions to better fill in what seems to be lacking. As this process unfolds, it becomes apparent which areas are our favorites. They are the pastels most often replaced and a larger portion of the palette is devoted to them. This may reflect subject matter choices but those choices also reflect a personal attraction. These expanded, well used, areas are the color families you are attracted to. How many times have you selected individual pastels at the art store only to find that you already had an abundance of them when you return to the studio?

Understanding our individual color preferences, and realizing they will inevitably be placed in a painting, can make the other color choices easier. They are major players, producing an influence over the whole of the painting. Sometimes it is expressive, relating more of how we feel. At other times, they are old-friend colors that we have grown to rely on. These color preferences should not be something to fret about. They are part of what makes us the painters we are.

Over years of painting I have had color preferences that have come and gone. One that has been a big influence the last decade is violet/gray. At times it leans to blue, at other times to red, but without a doubt, it is always present. For me, it is the tone in the landscape that threads the scene together, adding atmosphere and continuity. I am not sure if it is really present in all the scenes I paint or if I have just convinced myself it is there. Whatever the answer, it is a major part of my palette and finished paintings. What are yours? Please reflect on your work and post a comment. Then, look for that "Special Color" in other artists’ paintings you admire. It’s often what makes them stand out.

[pictured above] A field-sketch with color swatches showing my favorite pastels. They are easy to identify in the painting.



Monday, February 01, 2010 5:03:34 PM (GMT Standard Time, UTC+00:00)  #  Comments [8]
# Monday, January 25, 2010
Creating Colored Pastel Surfaces
Posted by richard

128-coloring-a-surface.jpg
In last week's blog post, I discussed how working on various value and color surface choices could produce exciting outcomes. After deciding on a texture, value and color for your pastel painting surfaces, you may find it not readily available. Even with the ever-expanding availability of new pastel surfaces, finding exactly the right combination can often prove frustrating. When the perfect combination is not easily found, existing pastel surfaces can be altered, or you can make your own homemade surfaces that allow you to control the texture, color and value.

If you wish to purchase ready-made pastel surfaces, there are many currently available. Clairefontaine Rhodia’s “PastelMat” and Ampersand’s “Pastelbord” offer fine choices. When it comes to black or rich dark offerings, and Art Spectrum’s “Colourfix” and Jack Richeson’s “Premium Pastel Surfaces” are many artists’ favorites. Both offer a variety of color and value combinations. Richeson’s surface has a toothier texture and is available on heavyweight Paper, Hardboard, and Gator Foam (a popular choice among plein air artists, due to its strength and lightweight nature).

If you are happy with your lighter/white surface but wish it were available in a different color/value combination, try toning it yourself. A thin application of pastel spread with rubbing alcohol often provides a desirable result with little effort. Make sure to test this in advance of committing to a large sheet of paper. Some acrylic based surfaces are susceptible to the effects of rubbing alcohol. A light spray of workable fixative will add additional durability to the tone, allowing for more technique opportunities. If the surface can tolerate water, a liquid pigment product, often utilized for airbrush techniques, can be a good choice. These have great covering ability with minimal threat of filling the tooth of the surface. Be cautious with acrylic-based paints. They can easily fill the surface tooth when not properly diluted.

If you wish to produce your own surface, start by substituting artist grade acrylic paint for the binder in your grit recipe (see my blog post from April 7, 2008 or my article download “Supports, Grounds & Underpaintings”). My recipe for a homemade black surface is to start with black gesso, available from Golden Acrylic Company or Utrecht Company. Fine pumice powder and water are added to make the desired consistency. Art Spectrum’s “Colourfix Primer” is also available in their full range of surface colors. These primers, along with homemade grit primers, can be applied in a variety of methods to produce a multitude of textures.

With a little effort, you can fine-tune any surface to exactly the color and value you desire, allowing you to be in control of your own process and as creative as you wish.

[pictured above] A variety of colored surfaces and Colourfix Black and Clear Primer.




Monday, January 25, 2010 3:23:39 PM (GMT Standard Time, UTC+00:00)  #  Comments [0]
# Tuesday, January 19, 2010
The Visual Relationship Between Pastel and Surface
Posted by richard

127-pastel-and-surface.jpg
Many pastel artists have witnessed the “pop” pastel can have when applied to certain surfaces. This is, of course, an optical illusion. The pastel stick hasn’t changed, just the relationship it has to the surrounding area. This perceived change is the foundation of the theory of “simultaneous contrast” (described in July 30, 2007 blog post). The phenomenon can be summed up this way: Everything is affected by the opposite of what it is next to.

To better understand this, and ultimately harness its power, do a series of experiments. Select an assortment of surface scraps that have various value and color differences. Next, choose various pastel sticks that also have variation. Apply similar pastel marks on all the surfaces. You will instantly see the differences. A pastel stick applied to a dark surface tends to look lighter. On a lighter surface it appears darker. Color bias, or temperature, of the stick will also appear to shift depending on the color of the surface. Warmer toned surfaces make pastels look cooler, and cooler surfaces make things look warmer.

We respond to these perceived shifts while painting and that is why pastel selections vary from situation to situation. There isn’t a perfect pastel for blue skies, green trees, or flesh tone. It is all relative to it surroundings. What worked perfectly in one painting situation can be a failure in another. Next time you feel like the mountains are not dark enough, try lightening the surrounding sky and see if they change. If the flesh tone of your portrait appears too dull, try weakening the chromatic intensity (brightness) of the background. There is a reason most classic portrait painters begin with a dull warm gray-green undertone and traditional landscape painters have relied on a warm undertone when starting; they both create a base tone for the color choices that follow.

Our pastel paintings are nothing more than a series of relationships. The tones we choose to work on set up a situation for the pastel to interact with. Some painters may prefer to work on dark surfaces, while others prefer light. Some prefer warm hues, while others prefer cool. By practicing on a variety of surface tones, you will gain experience on how they affect your pastel choices, allowing you to be better equipped to respond to the various scenarios your painting adventures may get you into. Viva la Difference!

[pictured above] Different value and color surfaces with the same pastel marks.

________________________________________________________________________
Richard McKinley's column "Pastel Pointers" appears reguarly in
The Pastel Journal. See the latest issue here. Look for downloads of his articles on Grounds & Supports and Fixing Mistakes in our shop.




Tuesday, January 19, 2010 2:55:04 PM (GMT Standard Time, UTC+00:00)  #  Comments [0]
# Monday, January 11, 2010
Out with the Old and In with the New
Posted by richard

126-clearing-out-the-old.jpg
New Years, besides providing a time for resolutions, is the perfect time for studio cleaning and reorganization. The days are short, cold and dreary for most of us in the United States, and motivation to paint is lacking. This provides a perfect opportunity to clean house.

Over a year of painting, it is easy to accumulate many good starts, a few mediocre attempts, and a number of complete failures. These pile up in the nooks and crannies of our studios and, with time, become a burden. Personally, I am an advocate of walking away from any painting when the motivation is gone. Otherwise, if forced to completion, it can easily become mechanical and lack artistic merit. The enthusiasm and inspiration have to be there, or else marks of pastel are just being made to make marks. Sometimes the inspiration returns, and it is easy to pick up where it was left, but, when the urge doesn’t return after a period of time, it is best to move on. The more these attempts are held on to, the more they own us. They represent the struggles and failures that are an everyday part of painting and can lead to painting anxiety and depression. Every time we enter our studios, they remind us of our shortcomings.

It is easy to justify retention of these attempts. We retain a certain degree of hope for possible completion or the awareness of the dollars invested in the supplies expended on their behalf. This is where individual personalities come into play. There are those that easily discard and those that easily amass. Diversity is good. Each of us needs to confront this with a degree of introspection by honoring our individual comfort levels. Being someone that has more starts sitting around his studio than finished paintings, I can attest to the weight they can pose. I know I am capable of finishing most of them but at what cost? I remember being told once by an early painting mentor that internally we all know with the first few strokes to surface if a painting is going to work or not. While it is important to persevere through the ups and downs of the process, it is equally important to not keep looking back but to look forward.

Getting rid of unwanted art supplies and failed paintings can be a chore and is often difficult to confront, but the energy produced by purging can prove quiet exhilarating. Reclaim surfaces when possible (see the blog post "Can This Surface Be Saved?") or destroy them. Trust me; it is a great feeling. Suppress the urge to store them away for another day. They will always be in the back of your mind, reminding you of the past. Even though hope remains eternal, there is a time to move on. Begin the new year with a clean painting slate. It will provide an optimistic setting in which to look forward.

[pictured] Stacks of “waiting” paintings in my studio.




Monday, January 11, 2010 4:12:34 PM (GMT Standard Time, UTC+00:00)  #  Comments [3]
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