As Ferri says, steer clear of cheap off-brand lenses, which can present quality and fit issues at best and health and safety issues at worst. I asked an optometrist to recommend the best contact ...
Photographers using an APS-C Canon R system body are finally about to have more options for affordable wide lenses, as Sigma continues its rollout of RF-S mount optics. The Sigma 16mm f/1.4 DC DN ...