Brightin Star 10mm f/5.6 II: Ultra-Wide APS-C for $75

Seventy-five bucks for an ultra-wide. Brightin Star's updated 10mm f/5.6 II is manual focus only, APS-C only, and built for photographers who need extreme angle of view on a tight budget. The update brings a closer focusing distance and a cleaner physical design over its predecessor. Not a workhorse for paid jobs, but for architecture students, travel shooters, or anyone experimenting with wide perspectives without betting $800 on a Tokina, it's worth knowing exists.