The Technology: The New, Improved Wacom Tip Sensor

Tip Sensor Feature #1: Feather touch starting pressure
Intuos4 technology is built upon a new Wacom Tip Sensor technology that allows the Intuos4 to achieve a feather-light starting pressure. The Intuos4 pen now is activated and begins producing marks on your software's canvas at the lightest touch, simulating the immediacy of the touch of pens, pencils, brushes and other artist utensils. Via the driver control panel, you can adjust the sensitivity of the pen by altering either the pressure curve to simulate a softer or harder tip or the click threshold to change the starting activation pressure (minimum 1 gram)!
Tip Sensor Feature #2: 2048 pressure levels, more natural pressure curve
The new Wacom Tip Sensor also incorporates intensive research into what makes a pen easier to use. The distribution of the pressure curve has been adjusted to simulate a more natural feel, and the 2048 levels of pressure sensitivity provides greater stability in controlling pressure-dependent variables on artist brushes (brush size, opacity, etc.). The new Tip Sensor has also allowed us to double the responsiveness of the pen by reducing the time it takes to activate maximum pressure.
Tilt sensitivity
We know that artists often tilt pencils, brush, and other utensils to achieve different effects on traditional media, so together with software partners, we have also built tilt sensitivity into our Intuos pen. The pen will be able to tell the direction and the angle at which it is tilting up to 60 degrees from the vertical allowing you take advantage of brushes in Adobe Photoshop, Corel Painter and other applications supporting this feature.
Tablet resolution
5080 lines per inch of resolution in the tablet translates into smooth, detailed lines on your screen.
The Tablet: Express Keys

ExpressKey Displays - Never forget
We wanted to make sure that you know exactly what you have assigned to each key, so we included OLED ExpressKey Displays with Intuos4 Medium, Large and X-Large. Even when setting different shortcuts or functions to the ExpressKeys depending on the application (using application-specific profiles), the displays will ensure you always know what has been assigned. Take full advantage of this, and you'll find yourself working faster by reducing dependency on your keyboard.
Touch Ring - Toggle between four functions
Our software partners, building canvas rotation into their products, insisted that we make the Intuos3 Touch Strip a Touch Ring instead. We went further by placing a toggle button in the middle giving the Touch Ring four different settings. Zoom, scroll, rotate your canvas in certain software, or customize to adjust brush size, opacity, etc.
Industrial Design Features
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Ergonomic sloping edges for maximum comfort
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Ambidextrous design - rotate the tablet to switch hands
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How to change the orientation in the driver
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Active area surface - In combination with the various pen nibs, the material for the surface sheet was chosen and designed to give the Intuos4 a natural, realistic feel. Standard black sheets come with Intuos4 Small, Medium and Large, and the X-Large comes with a clear sheet. Clear sheets are also available for other sizes as an optional accessory.
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Easy-to-grab edges not only slope inward but curve to fit your fingers making the Intuos4 easy to pick up and reposition.
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Detachable USB cable makes it easy to store or transport your Intuos4 Tablet
The Pen

The ergonomically designed Intuos4 Pen compliments Wacom's new Tip Sensor technology with comfort and convenience.
Customizable side switches
The two side switches (the pen buttons) on the Intuos4 Pen is customizable to a number of different functions including: Click, double click, right click, etc.; Keystrokes, Modifier Keys such as CTRL, SHIFT, ALT; Radial Menu; Back, Forward, Pen/Scroll; Show Desktop, Switch Applications, Open/Run an application; Pressure hold, Precision Mode, Pen/Mouse Mode Toggle, Eraser, Show ExpressKey Settings, and more.
Intuos4 Pen Grips
The Standard Grip is made of durable rubber for easy gripping and is designed with a tapered end that enhances the downward pressure of your hand as you hold it. This allows you to hold the pen lightly without force preventing fatigue after prolonged use. Included with all Intuos4 pen tablets, the Thick-bodied Grip was designed for those who prefer a larger size and who choose not to use the sideswitches (pen buttons). see Intuos4 accessories
Pressure-Sensitive Eraser
Eraser deliver 2,048 levels of pressure sensitivity
New Tip Sensor
The new Wacom Tip Sensor captures the slightest nuance of pressure with precision, accuracy and stability.
Intuos4 Pen Nibs
The Intuos Pen now comes with comes with four different nibs which, in combination with the tablet surface, simulate the feeling of using different traditional art tools.
- The Standard Nib is hard plastic against the surface simulates a pencil on paper feel
- The Felt Nib provides more friction simulating the use of a felt tip pen or the use of rough canvas-like paper
- The Stroke Nib is built with a spring for the softer touch of brushes
- The new Elastomer Nib is made of material that gives the pen a soft, rubbery feel
Intuos4 Pen Stand
The Pen Stand allowing you to rest the Intuos4 Pen vertically or horizontally, has also been completely redesigned. Twist the top off to reveal a storage compartment holding the nib remover as well as spare nibs: 5 Standard Nibs, 3 Hard Felt Nibs, 1 Stroke Nib, and 1 Flex Nib. Never lose your spare nibs again.
Color Rings
Also included with your Intuos4 are color rings that you can use to color the tip of your pen.
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