What is the primary consideration for a successful visual inspection?

The primary consideration for a successful visual inspection is lighting conditions. Proper lighting is crucial because it directly impacts the inspector's ability to see details and identify defects. Good lighting enhances visibility and allows for accurate assessment of the item being inspected. Inadequate lighting can lead to missed anomalies or misinterpretations, ultimately compromising the integrity of the inspection process.

While the experience of the inspector, quality of materials, and type of inspection equipment also play significant roles in the overall effectiveness of an inspection, they are secondary to the fundamental need for adequate lighting. Without proper illumination, even the most experienced inspectors or the best materials and equipment can lead to undetected problems.