The Canon EF 75-300mm f/4-5.6 III USM Telephoto Zoom Lens is a versatile and affordable option for Canon EOS DSLR camera users looking to capture distant subjects. This lens is well-suited for a variety of photography genres, including sports, wildlife, and portraiture, thanks to its telephoto zoom range. Despite its budget-friendly price, the lens offers a range of features that make it a valuable addition to a photographer's kit.

Key Features and Specifications

• Focal Length: The lens offers a telephoto zoom range of 75-300mm, allowing for significant magnification of distant subjects

• Aperture: It has a variable maximum aperture of f/4-5.6, which changes as you zoom in. The minimum aperture ranges from f/32 to f/45, depending on the focal length
  
  
• Lens Construction: Comprising 13 elements in 9 groups, the optical design ensures detailed and clear images
  
  
• Autofocus: Equipped with a Micro USM (Ultrasonic Motor), the autofocus is relatively quick and quiet, making it suitable for capturing fast-moving subjects without much noise
  
  
• Manual Focus: While autofocus is a key feature, the lens also allows for manual focusing, giving photographers more control over their shots
  
  
• Image Quality: A Super Spectra coating is applied to individual elements to minimize lens flare and ghosting, enhancing image quality by ensuring high contrast and color fidelity
  
  
• Bokeh: The lens features a seven-blade diaphragm, which contributes to a pleasing out-of-focus quality (bokeh) in the background of images, particularly useful in portraiture
  
  
• Build and Design: It is described as lightweight and compact for its class, making it easy to carry and handle during extended shooting sessions. The lens does not have image stabilization, which is something to consider when shooting in low light or at long focal lengths
  
  
• Compatibility: The lens mounts on Canon EF, making it compatible with both full-frame and APS-C Canon EOS DSLR cameras
  
  
• Filter Size: It accepts 58mm filters, allowing photographers to use various filters for creative effects or protection

Performance and Usage

The Canon EF 75-300mm f/4-5.6 III USM lens is praised for its affordability and the versatility of its zoom range. It's particularly noted for its performance in capturing sports, wildlife, and portraits from a distance. However, it's acknowledged that while the lens offers good value, its image quality and build are considered to be on the lower end compared to more expensive lenses. The lack of image stabilization means users may need to rely on faster shutter speeds or a tripod to avoid camera shake at longer focal lengths

In summary, the Canon EF 75-300mm f/4-5.6 III USM Telephoto Zoom Lens is a cost-effective choice for Canon EOS DSLR users looking to explore telephoto photography. Its lightweight design, combined with a useful zoom range and decent autofocus, makes it a suitable entry-level lens for capturing distant subjects. However, those seeking the highest image quality and durability may need to consider higher-end options.

The Canon EF 75-300mm f4-5.6 III USM Telephoto Zoom Lens is compatible with Canon EOS DSLR cameras that have an EF lens mount. Here's a list of some compatible models:

• Canon EOS 1D series (including 1D X Mark III)
• Canon EOS 5D series (including 5D Mark IV)
• Canon EOS 6D Mark II
• Canon EOS 7D series (including 7D Mark II)
• Canon EOS Rebel series (including T8i, T7i, T6s, T6i, T5i, T4i, T3i, T3, T2i)
• Canon EOS 90D
• Canon EOS M series (with EF-M to EF adapter)

Note: This is not an exhaustive list, and there may be other compatible models. You can check with the Canon or your camera's manual for a complete list of compatible lenses.

Important Note: This lens is not compatible with Canon EOS mirrorless cameras (RF mount) unless you use an EF-EOS R adapter.