Instruction: Parse the product information to locate the target attribute, and then provide the extracted value of the target attribute and its source in the output, specifying None if the attribute is not present.

Input:
Product title: Lytro Illum Light Field Digital Camera
Product description: The Illum Light Field Digital Camera from Lytro is their second-generation light field camera and offers not only an upgraded 40 megaray sensor but a traditionally-styled camera body and lens barrel with touchscreen LCD control, large grip and hot shoe mount. The Illum is a point-and-shoot camera that utilizes the unique Light Field sensor and the Light Field Engine 2.0 for image capture and processing. With a micro-lens array on the sensor it records the color, intensity and direction of light traveling in every direction throughout a scene and creates "living pictures" in which the focus point can be determined after you have shot the image. In addition to adjusting focus points and depth of field on an image, you can change the point of perspective slightly to the left, right, up or down.
Product feature: 40 Megaray Light Field CMOS Sensor, Light Field Engine 2.0 & Snapdragon 801, 8x Zoom Lens; 30-250mm Equivalency, Constant Aperture of f/2.0, 4.0" Back-Lit Tilt Touchscreen LCD
Product price: $799.00
Product brand: Lytro
Target attributes: Resolution
Answer: attribute: resolution
value: None
source: None