The A3+ Super B print measures a sizable 330mm x 483mm, or approximately 13 inches wide by 19 inches tall, resulting in a large surface area of 632 square inches. The proportions give it an aspect ratio close to 2:3. As an A3 "plus" size, A3+ Super B sits at the top of the A series paper sizes, surpassing A3 and A2. Its origins stem from the ISO 216 standard of incrementally increasing area by halving the preceding paper's shorter side. The "Super B" designation indicates extended length. Today, A3+ Super B offers photographers a substantial print size following the common A-series ratio progression, but with bonus panoramic dimensions. The size excels at sweeping landscape, architecture, and panoramic subjects while maintaining crisper details than smaller long-edge prints. It also saves costs over larger custom panoramic sizes. For outstanding image quality with efficient A-series paper use, A3+ Super B hits the sweet spot for sizable panoramic photographic output.