Answer:
a network effect
Step-by-step 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.