Bower 24mm f/1.4 ED AS IF UMC Manual Focus Lens for Canon EF-Mount Review

The Bower 24mm f/1.4 ED AS IF UMC is a budget-priced manual focus wide-angle prime for Canon EF-mount cameras. At $179 MSRP, it offers an unusually fast f/1.4 aperture at a 24mm focal length, a combination that typically costs considerably more from first-party manufacturers. The lens features extra-low dispersion glass and aspherical elements, along with ultra multi-coating, which on paper should help control aberrations and flare. The 77mm filter thread is notably large for this class.

This is a legacy product sold through used channels, and Bower itself was a budget brand that often rebranded Samyang and Rokinon optics. Manual focus only means no electronic communication with the camera body, so exposure metering and focus confirmation depend on your camera model. It's a lens for shooters comfortable with manual operation who want wide, fast glass without the premium price tag. Build quality and optical performance on these budget primes can vary, and without autofocus or electronic aperture control, it's a niche tool rather than an everyday walkaround.