Canon EF 50mm f/1.4 USM Lens

Canon EF 50mm f/1.4 USM Lens
Classic Normal Prime with Exceptional Low-Light Capability
The Canon EF 50mm f/1.4 USM is a highly versatile, bright normal-length prime lens designed for full-frame Canon EF-mount DSLRs. Widely regarded as a staple in every photographer’s kitbag, its ultra-fast f/1.4 maximum aperture makes it exceptionally well-suited for low-light photography and for achieving dramatic subject isolation with shallow depth of field. The lens utilizes a classic Gaussian optical layout paired with high-refractive index elements to control optical aberrations and deliver exceptional edge-to-edge sharpness. Outfitted with a micro Ultrasonic Motor (USM) for rapid, near-silent autofocus, this lightweight and compact prime is a premier selection for portraits, street photography, travel, and everyday assignments.

Key Features & Engineering
Fast f/1.4 Aperture Speed: The bright f/1.4 maximum aperture excels in low-light and indoor conditions, allowing for faster shutter speeds and providing precise control over depth of field for selective focus techniques.

Gaussian Optics & High Refractive Glass: Engineered with a refined Gaussian optical design that incorporates two high refractive index elements. This configuration actively reduces distortion and spherical aberrations, ensuring crisp rendering and high contrast across the image plane.

Super Spectra Coating: Individual lens elements feature Canon’s Super Spectra coating to combat internal reflections, surface flare, and ghosting. This guarantees color neutrality and rich contrast, even when shooting into direct backlighting.

Micro Ultrasonic Motor (USM): Employs an ultra-responsive micro USM to drive autofocus quickly, precisely, and quietly. The sophisticated mechanics support full-time manual focus override, allowing instant fine-tuning simply by rotating the focus ring without exiting AF mode.

Rounded 8-Blade Diaphragm: Incorporates an eight-blade rounded aperture system that renders smooth, pleasing out-of-focus background elements (bokeh) that beautifully complement close-up portraits.

Full-Frame & APS-C Compatibility: Optimized for full-frame EF-mount camera bodies, it can also be seamlessly utilized on APS-C format DSLRs where it delivers an 80mm equivalent focal length—making it a fantastic short-telephoto portrait lens.

Technical Specifications
Lens Classification: Standard Normal Prime Lens

Lens Mount Type: Canon EF-Mount

Focal Length: 50mm (80mm equivalent on APS-C sensors)

Maximum Aperture: f/1.4

Minimum Aperture: f/22

Optical Design: 7 Elements in 6 Groups

Autofocus Motor: Micro USM (Ultrasonic Motor) with Full-Time Manual Override

Diaphragm Blades: 8 (Rounded)

Filter Thread Size: 58 mm

Dimensions (Diameter x Length): Approx. 2.9 x 2.0 inches / 73.8 x 50.5 mm

Weight: 10.2 oz / 290 g