Compatible with Sony Alpha A mount, not applicable to other models.
Model is M42-AF, Made of aluminum alloy, it is durable, corrosion-resistant, and not easy to deform or wear after long-term use.
The adapter ring has a chip-free design and is suitable for manual focus and manual aperture operation, which is more suitable for retro photography enthusiasts and manual control players.
Reasonable thickness design supports the lens to focus to in-finity without additional adjustment, making shooting more convenient.
Contains 2 adapter rings at a time, which can be configured with multiple lenses at the same time or as a backup, suitable for photographers to use multiple devices.