Should I buy a used Sony A7 III for event photography?

Yes — a used Sony A7 III can still be a smart buy for event photography if the copy is in good condition and priced low enough versus newer bodies. It is especially appealing if you shoot weddings, parties, corporate events, or low-light indoor work and would rather put more budget into lenses, flashes, batteries, and backup gear.

Buy it if:

1. The shutter count and physical condition are reasonable.
2. Both card slots, autofocus, EVF/screen, buttons, ports, hot shoe, and battery door work properly.
3. The sensor is clean and free of scratches or coating damage.
4. You can afford at least one good event lens, such as a fast zoom or fast prime, not just the body.
5. The used price is meaningfully cheaper than newer Sony full-frame options.

Be more cautious if you shoot lots of video, need the newest autofocus tracking, want a stronger rear screen/menu experience, or plan to rely on one camera body professionally. For paid events, the bigger issue is not whether the A7 III is capable — it is — but whether you have backups: second body, extra batteries, dual-card recording, flash, and dependable lenses.