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Author: Jaxas, Contributing Editor
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| In the following pages I am going to demonstrate the way I use painting knives in the creation of an oil painting, using the above photo as my reference. It is not my intention to produce a photorealistic copy of the photo, but rather to render in paint in such a way that there can be no doubt about it being a painting. There is nothing unconventional about my working methods but I've been asked to document this work in progress and discuss my methods, so here goes. |
| I use a simple medium of 50-50 linseed oil and mineral spirit for adjusting the consistency of the paint as it comes from the tube. I keep that in a small palette cup, to which has been added a drop or two of cobalt drier. All
of my tube paints are too stiff for the kind of brush work I do, so all of the paint squeezed out onto my palette gets mixed with a bit of the medium. |
 | The painting will 12 X 15 inches, on canvas.
These are the three knives I will be using throughout. I have chosen three colors for my sky, which is where I always begin a landscape painting. In this case it's a simple blend of the three colors tinted with titanium white: cerulean blue - pure oxides of cobalt and tin. cerulean blue "hue" - phthalocyanine and zinc oxide. raw sienna - pure earth pigment. Note the distinct difference between the two ceruleans, demonstrating the differences between pure pigments and those sold as "hues." One could just as easily create the "hue" from separate tubes of phthalocyanine and zinc white, whereas its unlikely the average artist would have the pigments of cobalt and tin oxide in tube form. |
 | I use the flat underside of this knife for "blending"
the two blues. |
 | A closeup of the two blues blended, with the cobalt/zinc
plus titanium white tint on top. |
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