Canon EF 75-300mm f/4-5.6 III USM

Canon EF 75-300mm f/4-5.6 III USM

• EF-Mount Lens/Full-Frame Format
• Aperture Range: f/4 to f/45
• Super Spectra Coating
• DC Micro Motor AF System
• 7-Blade Diaphragm

Canon EF 75-300mm f/4-5.6 III USM

Canon EF 75-300mm f/4-5.6 III USM Lens Overview

The Canon EF 75-300mm f/4-5.6 III USM is a lightweight and affordable telephoto zoom lens designed for Canon full-frame and APS-C DSLR cameras. Offering a versatile 75–300mm focal range, this lens is a great entry point for photographers looking to explore sports, wildlife, portrait, and travel photography on a budget.

Canon EF 75-300mm f/4-5.6 III USM Lens Optical Design

The lens uses a simple optical structure with 13 elements in 9 groups. While it does not feature advanced coatings or specialized glass, it delivers acceptable image quality for casual use, especially in good lighting. Stopping down the aperture slightly improves sharpness and contrast across the frame, particularly at the telephoto end.

Canon EF 75-300mm f/4-5.6 III USM Lens Zoom Range and Versatility

The wide zoom range allows photographers to capture a variety of scenes—from distant landscapes and wildlife to closer portraits and candid moments. On APS-C cameras, it offers an equivalent focal length of approximately 120–480mm, extending its reach further for tighter framing and subject isolation.

Canon EF 75-300mm f/4-5.6 III USM Lens Autofocus and Handling

The lens is equipped with a Micro Ultrasonic Motor (USM) for quick and quiet autofocus performance. While not as advanced as Canon’s ring-type USM, it is fast enough for most daylight applications. The lens supports full-time manual focus override and includes a textured zoom ring for smooth adjustment in the field.

Canon EF 75-300mm f/4-5.6 III USM Lens Lightweight Build and Portability

Weighing just around 480g, the lens is easy to carry and handle, making it suitable for travel and casual photography. Its plastic construction keeps it lightweight, although it does not include weather sealing. The compact design and reasonable size make it comfortable to use handheld or with a monopod.

Canon EF 75-300mm f/4-5.6 III USM Lens Ideal for Entry-Level Telephoto Needs

This lens is best suited for beginners or hobbyists who want to explore telephoto photography without investing in higher-end L-series glass. It performs best in well-lit conditions and is a practical addition to an entry-level Canon DSLR kit for those expanding beyond standard zooms or kit lenses.