Canon RF 28-70mm F2 L USM Instruction Manual

Pages 14

Year 2018

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Canon RF 28-70mm F2 L USM Specification

The Canon RF 28-70mm F2 L USM Lens is a premium standard zoom lens designed for professional photographers seeking exceptional image quality and versatility. It features a constant f/2 aperture, allowing for superior low-light performance and shallow depth of field control. The lens is part of Canon's esteemed L-series, known for its robust build and advanced optics.

Utilizing Canon's RF mount, it offers enhanced communication between the lens and camera body, resulting in faster autofocus and improved image stabilization capabilities. The lens construction comprises 19 elements in 13 groups, including special glass elements and ultra-low dispersion lenses, which minimize chromatic aberrations and enhance clarity and color fidelity.

The USM (Ultrasonic Motor) technology ensures fast, silent, and precise autofocus, making it ideal for both still photography and video applications. The lens also features a customizable control ring for intuitive adjustment of settings such as aperture and ISO, enhancing user experience and efficiency in varied shooting conditions.

Its durable design includes weather sealing to protect against dust and moisture, making it suitable for challenging environments. With a minimum focusing distance of 0.39 meters, it offers flexibility for close-up shots. The lens measures 103.8mm in diameter and 139.8mm in length, weighing approximately 1430 grams, which is relatively lightweight for a lens of its class.

The Canon RF 28-70mm F2 L USM Lens provides outstanding optical performance and versatility, tailored for professionals who require high-quality results across a range of photographic scenarios.

Canon RF 28-70mm F2 L USM F.A.Q.

What are the key features of the Canon RF 28-70mm F2 L USM Lens?

The Canon RF 28-70mm F2 L USM Lens features a constant f/2 aperture, superior image quality, fast and quiet autofocus with USM technology, and a robust L-series build quality.

How do I clean the Canon RF 28-70mm F2 L USM Lens?

Use a microfiber cloth and lens cleaning solution for the glass elements. For dust on the exterior, a soft brush or blower is recommended. Always avoid excessive moisture and handle with care.

What should I do if the autofocus is not working on my Canon RF 28-70mm F2 L USM Lens?

Check the lens-to-camera connection for secure attachment. Ensure the camera is set to autofocus mode. If the problem persists, clean the electrical contacts or consult Canon support.

Can I use filters with the Canon RF 28-70mm F2 L USM Lens?

Yes, the Canon RF 28-70mm F2 L USM Lens supports 95mm screw-on filters. Ensure any filter used is compatible with the lens diameter to avoid vignetting.

How can I prevent lens flare when using the Canon RF 28-70mm F2 L USM Lens?

Use the lens hood provided with the lens to minimize flare. Additionally, avoid direct sunlight hitting the lens and consider using a CPL filter to reduce reflections.

What maintenance does the Canon RF 28-70mm F2 L USM Lens require for optimal performance?

Regularly clean the lens glass and exterior, and store it in a dry, dust-free environment. Periodically check the lens mount and electrical contacts for cleanliness.

Is the Canon RF 28-70mm F2 L USM Lens weather-sealed?

Yes, the lens is weather-sealed, providing protection against dust and moisture. However, it is advisable to use it with a weather-sealed camera body for optimal protection.

How do I update the firmware on my Canon RF 28-70mm F2 L USM Lens?

Canon RF lenses typically do not require separate firmware updates. Ensure your camera body firmware is updated as it may include enhancements for lens performance.

What is the minimum focusing distance of the Canon RF 28-70mm F2 L USM Lens?

The minimum focusing distance of the Canon RF 28-70mm F2 L USM Lens is 0.39 meters (1.28 feet), allowing you to capture subjects at close range with high detail.

How can I achieve the best image sharpness with the Canon RF 28-70mm F2 L USM Lens?

For optimal sharpness, use a tripod to stabilize your setup, shoot at mid-range apertures like f/5.6 or f/8, and ensure precise focus, especially in low light conditions.