Another straightforward yet impactful compositional technique for product photography is the rule of odds. This guideline suggests that when photographing multiple objects, arrange them in odd-numbered groupings rather than even numbers. Compositions with an odd number of items compel the human eye to work harder to individually process each element.
Our brains are naturally inclined to seek out patterns, order, and organization. An odd-numbered grouping of products disrupts this innate tendency, causing the subconscious mind to expend more cognitive effort. The effect is that it encourages viewers, such as potential customers, to linger on and study the product images for a longer duration. Employing the rule of odds strategically introduces a subtle sense of tension that captures and holds the viewer's attention more effectively.