Sony A7 III: The main popular hit of the secondary market

The Sony Alpha A7 III (ILCE-7M3) camera has become a true legend thanks to the perfect balance of price and eye autofocus and video quality. It is one of the best-selling mirrorless cameras on the secondary market. However, as a service technician, I is obliged to warn buyers about one important hardware feature of this model.

Problem with the first revisions of the bolt block (2018–2019)

In the first batches of the Sony A7 III, an early revision shutter was installed, whose mechanical lamellas sometimes broke at runs **from 30,000 to 80,000 frames**. In later batches (starting from 2020) and with warranty replacement in services, a reinforced bolt block of a new revision was installed.

How to protect yourself when buying a Sony A7 III?

1. Check split mileage:read the metadata of the `.ARW` file on our service. The service will display `Mechanical Shutter Count` and `Total Image Count`.
2. If the carcass has a total mileage of 120,000, but **mechanical mileage is less than 30,000** (filmed with Silent Shutter), The shutter is in perfect condition!
3. If the shutter was replaced under warranty at an authorized Sony service center, ask the seller for a work order. Camera with new The latest revision shutter is the best choice.