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Canon RF 75- vs lightdow EF

Updated July 2026 — Canon RF 75- wins on autofocus and focal range, lightdow EF wins on price.

The Canon RF 75-300mm f/4-5.6 Lens offers greater versatility and autofocus, making it a better choice for varied photography needs compared to the EF 85mm f1.8 Portrait Lens.

Why Canon RF 75- is better

Versatility

The RF lens covers a wider focal range.

Autofocus

The RF lens features responsive autofocus.

Weight

The RF lens is lightweight for a telephoto.

Why lightdow EF is better

Price

The EF lens is significantly cheaper.

Bokeh

The EF lens provides excellent background blur.

Portrait Focus

The EF lens is specialized for portrait photography.

Overall score

Canon RF 75-
85
lightdow EF
70

Specifications

SpecCanon RF 75-lightdow EF
Aperturef/4-5.6f/1.8
Focus TypeAutofocusManual
CompatibilityRF CamerasDSLR Cameras
Max Magnification0.25xNot Specified
Close Focus4.9 ftNot Specified

Dimension comparison

Canon RF 75-lightdow EF

Overview of the Canon RF 75-300mm f/4-5.6 Lens

The Canon RF 75-300mm f/4-5.6 Lens is a versatile telephoto zoom lens priced at $253.95. It is designed for Canon RF-mount full-frame and APS-C mirrorless cameras. This lens is particularly suited for capturing sports, wildlife, portraits, and everyday distant subjects due to its wide focal range, offering an equivalent of 120-480mm on APS-C cameras. Weighing just over 1 lb, it is lightweight and easy to carry, making it an excellent choice for photographers seeking mobility and quality.

Overview of the EF 85mm f1.8 Portrait Lens

The EF 85mm f1.8 Portrait Lens is an affordable manual focus lens priced at $77.59. Designed for a wide range of Canon DSLR cameras, this lens focuses specifically on portrait photography, thanks to its 85mm focal length and f/1.8 aperture. Its fully manual design allows for precise focus control, providing a unique creative freedom for photographers. While it may not be suitable for fast-paced shooting due to its manual focus, it excels in delivering superb image quality and beautiful bokeh, making it a favorite among portrait photographers.

Price Comparison

The Canon RF 75-300mm f/4-5.6 Lens is priced at $253.95, while the EF 85mm f1.8 Portrait Lens is significantly cheaper at $77.59. This means that the RF lens is about 226% more expensive than the EF lens. If you're on a budget or just starting with photography, the lower price of the EF 85mm could be more appealing. However, for those who need the versatility and reach of a telephoto zoom lens, the Canon RF 75-300mm may justify its higher cost.

Autofocus vs. Manual Focus

The Canon RF 75-300mm lens features a responsive DC motor for autofocus, making it suitable for both stills and video. This feature is essential for capturing fast-moving subjects like wildlife or athletes. In contrast, the EF 85mm f1.8 Portrait Lens is entirely manual focus, requiring photographers to adjust the focus themselves. While this can offer more control and artistic freedom, it may not be ideal for those who prefer the convenience of autofocus, particularly in dynamic shooting environments.

Image Quality and Performance

The Canon RF 75-300mm f/4-5.6 Lens is optimized for sharpness and clarity, with Canon’s Super Spectra Coating that minimizes lens flare and ghosting. This ensures high contrast and color fidelity even in challenging lighting conditions. On the other hand, the EF 85mm f1.8 Portrait Lens boasts 6 rounded aperture blades and hybrid aspherical lens technology, which help in reducing aberrations and glare. This lens delivers superb image quality and dreamy background blur, making it an excellent choice for portrait photography.

Portability and Build Quality

The RF 75-300mm lens weighs just over 1 lb, making it lightweight and travel-friendly, which is ideal for photographers who need to carry their gear for extended periods. With a slim design and a 58mm filter thread, it remains compact without sacrificing performance. Conversely, while the EF 85mm lens is not as heavy, its fully manual design means that photographers must be more engaged with their settings, which can slow down the shooting process.

Compatibility and Use Cases

The Canon RF 75-300mm f/4-5.6 Lens is compatible with Canon RF-mount full-frame and APS-C mirrorless cameras, making it versatile for various photography styles, including sports, wildlife, and travel. The EF 85mm f1.8 Portrait Lens, however, is specifically designed for a wide range of Canon DSLR cameras, making it a specialized tool for portraiture. If you primarily shoot portraits, the EF 85mm could be more suitable, while the RF lens offers a broader range of applications.

Which should you buy?

Choosing between the Canon RF 75-300mm f/4-5.6 Lens and the EF 85mm f1.8 Portrait Lens ultimately depends on your photography needs and budget. If you require a versatile zoom lens for various subjects and appreciate the convenience of autofocus, the RF 75-300mm is worth the investment at $253.95. However, if you're focused on portrait photography and prefer a more budget-friendly option, the EF 85mm at $77.59 provides excellent image quality and artistic control, albeit without autofocus.