Crawford-delta inc., manufacturers of camera lenses, are promoting their new high definition lens series through blogs and articles of professional photographers. this creates a buzz among amateur photographers leading to a high demand for the product. in this case, the promotional process utilized by the organization reflects a

a network effect

Explanation:

Based on the information provided within the question it can be said that the promotional process utilized by the organization reflects a network effect. In the context of business economics, this term refers to an effect that additional  users have on a product or service, so much so that the value of the product/service increases as additional users come on-board. Which is the case in this scenario as amateur photographers hear about the new lenses leading to high demand of the product.