Canon Ultrasonic EF70-300mm f 4-5.6 IS II USM Instruction Manual

Canon Ultrasonic EF70-300mm f 4-5.6 IS II USM manual cover
Pages 25
Year 2016
Language(s)
English en

Canon Ultrasonic EF70-300mm f 4-5.6 IS II USM Specification

The Canon Ultrasonic EF70-300mm f/4-5.6 IS II USM Lens is a versatile telephoto zoom lens designed for Canon's EOS DSLR cameras, offering a broad focal length range of 70-300mm. This lens is equipped with a sophisticated NANO USM technology, providing fast, silent, and precise autofocus, making it ideal for both still photography and video recording. It features an Image Stabilizer that compensates for camera shake, delivering up to four stops of correction to ensure sharp images, particularly useful in low-light conditions or when shooting at the longer end of the zoom range. The optical construction includes 17 elements in 12 groups, with one UD (Ultra-low Dispersion) element to greatly reduce chromatic aberrations and enhance image clarity and color fidelity.

The lens incorporates a circular aperture diaphragm, utilizing nine blades to create a pleasing bokeh effect, enhancing the artistic quality of out-of-focus areas in images. An innovative Lens Information Display on the barrel provides crucial data such as focal length, focusing distance, and depth of field directly on the lens, allowing for intuitive adjustments without referring to the camera's viewfinder or LCD. The build quality is robust yet compact, weighing approximately 710 grams, making it a manageable option for photographers on the move. This lens is compatible with full-frame and APS-C format Canon cameras and is particularly suitable for wildlife, sports, and portrait photography. With its advanced optical technologies and user-friendly features, the Canon EF70-300mm f/4-5.6 IS II USM Lens is a reliable tool for both amateur and professional photographers seeking high-quality telephoto performance.

Canon Ultrasonic EF70-300mm f 4-5.6 IS II USM F.A.Q.

What is the best way to clean the Canon Ultrasonic EF70-300mm f/4-5.6 IS II USM lens?

To clean the lens, use a soft, lint-free cloth to gently wipe the lens surface. For stubborn smudges, use a lens cleaning solution applied to the cloth, not directly on the lens. Avoid using harsh chemicals or abrasive materials.

How can I minimize lens flare when using the Canon EF70-300mm lens?

To reduce lens flare, attach the lens hood provided with the lens. Additionally, try to avoid shooting directly into bright light sources or position the light source behind you.

What should I do if the autofocus on my Canon EF70-300mm lens is not working properly?

Ensure the lens is securely attached to the camera body and that the AF/MF switch on the lens is set to AF. If it still doesn’t work, clean the electrical contacts on the lens and camera with a dry cloth. If problems persist, consult Canon support.

How do I enable image stabilization on the Canon EF70-300mm lens?

Image stabilization can be enabled by setting the IS switch on the lens to the ‘On’ position. This helps reduce camera shake, especially in low-light conditions or at longer focal lengths.

Can I use a teleconverter with the Canon EF70-300mm f/4-5.6 IS II USM lens?

The lens is not typically compatible with Canon's EF teleconverters. Check specific compatibility with Canon or third-party teleconverters before use.

What is the procedure for calibrating the focus on my Canon EF70-300mm lens?

Focus calibration can be performed via the camera's micro-adjustment feature, if available. Follow the camera’s manual for precise instructions. Alternatively, professional calibration services can be used.

How do I troubleshoot blurry images with the Canon EF70-300mm lens?

Ensure that image stabilization is on, use a fast shutter speed to counteract motion blur, and check focus settings. Also, verify that the lens and sensor are clean.

What maintenance is required for the Canon EF70-300mm lens to ensure longevity?

Regularly clean the lens elements and contacts, store the lens in a dry, dust-free environment, and use the lens hood to protect against physical damage. Periodic professional servicing can also help maintain performance.

How do I switch between AF and MF modes on the Canon EF70-300mm lens?

The lens has an AF/MF switch on the side. Slide the switch to AF for autofocus and to MF for manual focus.

Is it normal for the Canon EF70-300mm lens to make noise during autofocus operation?

The lens uses a USM (Ultrasonic Motor) which is generally very quiet, but some noise is normal. If the noise is unusually loud, check for obstructions or consult Canon support.