Instruction: First, identify the target attributes from the provided list. Then, scan the product title, description, feature, and brand to extract the values associated with each target attribute. Finally, create a list of dictionaries, each containing the extracted attribute, its corresponding value, and the source where it was found.

Input:
Product title: Bower ANP53072 Nikon Coolpix P530 72 mm Adapter Tube (Black)
Product description: The Adapter Tube for Nikon Coolpix P530 is a 72mm adapter tube specifically made to mount filters, lenses and other accessories onto your camera. The adapter screws directly onto the lens barrel ring and is designed to move with the lens while zooming in and out. This provides filter coverage throughout the zoom range and prevents vignette at the wide-angle end of the zoom. It is dedicated for use with the Nikon Coolpix P530 and will support any kind of 72mm filter, lens hood, or conversion lens.
Product feature: Filter Thread: 72mm, For Nikon Coolpix P530, Designed to fit 72mm fisheye, wide-angle, telephoto and macro lenses, filters, lens hoods and more., Lightweight, Easy to use, Durable, Limited Lifetime Manufacturer's Warranty
Product brand: Bower
Target attributes: Magnification
Answer: attribute: magnification
value: None
source: None