Nikon 3066 AS-15 Sync Terminal Adapter

The Nikon AS-15 Sync Terminal Adapter is a purpose-built accessory that slides into a Nikon camera's hot shoe and provides a standard PC sync terminal where one does not exist natively. This allows photographers to connect a PC sync cord running to studio strobes, monolight systems, or radio flash triggers — equipment that relies on the PC sync standard for fire signals. It is a particularly useful accessory for Nikon DSLR and mirrorless camera bodies in the consumer and mid-range tiers, which often omit the PC sync port found on higher-end professional bodies.

The adapter itself is entirely passive, with no batteries or electronics beyond the electrical contact that completes the sync circuit when the camera's shutter fires. This simplicity is both its strength and its limitation: it provides a reliable, zero-maintenance sync connection, but it does not support TTL flash metering, high-speed sync, or any other advanced communication between camera and flash. For studio work where flashes are set to manual power and triggered by a sync signal alone, the AS-15 is all that is needed. Its compact, all-black design adds virtually no size or weight to the camera, and as a genuine Nikon accessory, it fits the hot shoe precisely without the play or wobble sometimes found in third-party adapters.