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( 1.8 / 261 )Single Action - the trigger controls only the airflow. Amount of fluid is regulated by turning the needle adjustment screw; when trigger is depressed, pre-set amount of fluid is sprayed
Dual Action - the trigger controls both air and color (down for air, back for color); allows for varying line width, range of value, and opacity of paint while spraying
["Action" refers to trigger functions of airbrush]
External Mix - air and paint mix outside the airbrush, resulting in a large, coarse spray pattern (used for larger surface coverage)
Internal Mix - air and paint mix inside the airbrush, resulting in a fine dot spray pattern (used for color gradations, shading, & fine line applications)
["Mix" refers to combining or coming together of air and the medium being atomized by airbrush]
Side Feed - a small color cup fits into the side of the airbrush; requires at least 13-18 PSI to operate
*allows for airbrushing in difficult spots; good control and detail through slight pressure reduction
Bottom Feed - paint enters through a siphon tube or color cup attached to bottom of the airbrush; requires at least 20-30 PSI to operate
*best for general applications and production applications; use of more material without stopping by using larger color reservoirs; allows artist to work at faster pace (faster application of color)
Gravity Feed - top-mounted color cups in which gravity draws paint into the airbrush; less air pressure (as low as 8-12 PSI) is required to operate
*allows artist to slow down; gravity pulls color into airbrush, so artist is enabled to work at lower pressures and have more control; easier to achieve finer detail because material is sprayed at slower pace; preferred airbrush for detail
Dual Feed - has ability to be used as gravity feed or bottom feed; patented and exclusive to Badger Air-Brush Co.
["PSI"=Pressure per square inch; "Feed" refers to place of entry & manner the sprayed medium enters the airbrush]
Key factors in properly spraying an airbrush are recognizing the amount of paint being released by the airbrush and the distance the airbrush is being held from the surface being sprayed:
*Fine lines - airbrush should be held as close as possible to surface with small amount of paint being released
*For broader spray coverage - airbrush should be held 4"-6" from surface being sprayed with a larger volume of paint being released
*The airbrush will produce overspray: the "fuzz" of dots that spray outside of or around the sprays desired focal point. If a sharp edge is desired, a masking medium (stencil, frisket, low-tac masking tape, spray shield, etc.) must be used when using an airbrush.
[info taken from Badger Air-Brush Co.]
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( 3 / 152 )HOLBEIN'S Duo Aqua Oil Color is water soluble, but the oil is identical to that used in HOLBEIN Artist Oil Color. There is no modification or breaking down (cracking) of the oil. There is no water in the product, only the additive Holbein developed which works as a surfactant(surface active agent), which loses its effectiveness once the oil color is dry. The surface agent covers the pigment and oil, thus making both water sensitive or soluble. There is no other ingredient present.
*DUO may be used as a traditional oil color and the result will be the same
*DUO blends naturally with traditional oil color and mediums although water solubility is lost if traditional oils or mediums exceeds 30% of the mixture
*DUO is not classified as a water base color such as gouache, watercolor, or acrylic, but all of these will blend perfectly with DUO while wet (add a few drops of water when blending with acrylic)
*DUO starts to dry slowly and after the water dries out, the oil that remains continues to dry by oxidation in the same manner as traditional oil and with the same result
*When blended with water alone, DUO will dry to a slight matte finish in less time than traditional oil applied after blending with an oil medium
*The knife painter will find no difference in the handling of DUO in comparison to traditional oils except for convenient soap and water clean up
*The brush painter may find under some conditions there is a bit more "drag" on the brush; 1 or 2 drops of DUO Linseed Oil added to the paint will solve this problem readily
*Finished works should NOT be varnished for 6 to 8 months, as is usual for oil color
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( 3 / 125 )Charcoal (charred wood) can be used in many art applications, ranging from rough sketches in painting to the sole material used in a drawing. It usually is used by artists in 3 forms:
1. Vine/Willow: a natural state of charcoal; sticks are slowly baked until reduced to pure carbon; there is a subtle difference between vine and willow:
*Vine charcoal will give a softer, "feathery" type look
*Willow charcoal is crisper and denser
2. Compressed charcoal: a mix of charcoal and clay or other fillers/binders compressed into round or square sticks; the amount of binder determines the hardness of the stick--HB is the hardest, and as the gradation continues the charcoal gets softer (i.e 6B is softer than 4B, 4B softer than 2B); compressed charcoal is also used in charcoal pencils
3. Powdered charcoal: can be used to create "tone" over large sections of a drawing surface; can be darkened further by drawing over the toned areas, and can also be erased to create lighter tones
Tips:
*Other useful materials include fixative (seals/protects dust from moving; prevents smudging) as well as blending stumps, chamois, and kneaded erasers, which aid in fading, blending, and creating texture
*Charcoal needs a paper with tooth (textured surface); it will not successfully adhere to a smooth surface
Related Artists:
-Henry Yan (www.henryyanart.com)
-Ariel Elizabeth Churnin (www.arielchurnin.com--"Charcoal and Pastel: Spring 2006" section of her blog)
-Rachel Clark (www.rachelclark.com)
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( 4.9 / 105 )This past Saturday, Gamblin Artist Colors' representative Anna Fox Ryan visited us here in Sarasota to give a demonstration on Gamblin's oil paint and mediums. Anna graduated from Savannah College of Art and Design, and has a lot of experience traveling and giving oil painting demos. We are very thankful for the time she donated to us! Thank you everyone for coming out to join us!
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