Tamron 24mm F/2.8 Di III OSD M1:2

Testers found it sharp in the centre from f/2.8 with corners that need f/5.6 to f/8 to catch up, which is typical for a budget wide prime. Distortion and vignetting are noticeable uncorrected but handled well by in-camera profiles, and lateral colour is low.

The close-focus ability is the feature reviewers keep coming back to, though image quality softens at the 1:2 limit. The OSD focus motor is quiet and accurate but not fast, and focus hunting in low light is the most common practical complaint.

Owners buy it as a light walkaround or travel wide and are pleased with the size, the weather sealing at this price, and the close-up shots it allows. Several pair it with the 20mm and 35mm siblings because of the identical size and filter thread.

Complaints centre on AF speed for moving subjects, audible focusing in quiet video work, and the 7-blade aperture producing angular highlights when stopped down. Some find the small barrel and narrow focus ring less pleasant to use manually.