Canon 4409B002

Overview

The Canon 4409B002 is an Extender EF 1.4X III that increases the reach of compatible Canon L-series telephoto lenses by 1.4 times, allowing photographers to capture distant subjects with greater detail without carrying a heavier lens. It maintains sharpness and contrast while reducing the maximum aperture by one stop, making it ideal for wildlife, sports, and travel photography where tighter framing is essential.

Key features

• Magnifies the focal length of compatible Canon L-series telephoto lenses by 1.4 times, extending your shooting range effectively.
• Optical design with seven elements in three groups preserves image quality, ensuring sharp and clear photos even at extended focal lengths.
• Super Spectra coating reduces flare and ghosting, improving contrast and color fidelity in challenging lighting conditions.
• Fluorine coating on front and rear elements resists fingerprints, dust, and moisture, simplifying cleaning and maintenance in the field.
• Integrated processor maintains seamless communication between camera, extender, and lens for accurate autofocus, image stabilization, and exposure metering.
• Dust and water-resistant construction allows reliable use in harsh outdoor environments such as dusty trails, rainy conditions, or sandy locations.
• Compact and lightweight design (approximately 2.8 × 1.1 inches and 7.9 ounces) makes it easy to carry without adding bulk to your gear.

Key specs

• Magnification: 1.4×
• Optical elements: 7 elements in 3 groups
• Coatings: Super Spectra and fluorine coatings on front and rear elements
• Weight: 7.9 ounces (225 grams)
• Dimensions: Approximately 2.8 × 1.1 inches (71 × 28 mm)
• Light loss: 1 stop reduction in maximum aperture
• Compatibility: Designed for Canon L-series telephoto and super-telephoto EF lenses
• Weather sealing: Dust and water resistant

Connectivity and compatibility

This extender is compatible with Canon EOS cameras and L-series telephoto lenses that support EF mount extenders. Its integrated processor ensures that autofocus, image stabilization, and exposure metering continue to function accurately when attached, preserving the performance of your camera system.

Ideal uses and environments

The extender is well suited for photographers who need to capture distant subjects without sacrificing image quality or carrying multiple heavy lenses. It works well for wildlife photographers aiming to stay at a safe distance, sports photographers isolating athletes from the background, and travel photographers who want to pack light while still achieving frame-filling shots. Its weather-resistant design supports use in outdoor conditions where dust, moisture, or light rain might be present.

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Returns are accepted within 30 days of delivery. Items must be unused, in the same condition received, with tags, manuals, accessories, and original, unaltered packaging. Any item kept will be deducted from the refund. Start a return by sending us an email. Items sent back without approval may be refused or returned to the sender.

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After inspection, refunds are issued to the original payment method; allow 5–7 business days for the credit to post. Shipping, handling, customs duties, and import taxes are nonrefundable. If an item is used, incomplete, or not in original condition, a 30% restocking fee may apply. Direct exchanges are not offered; purchase the replacement and return the original for a refund.

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If you need warranty service, please file the claim directly with the manufacturer. They may require proof of purchase, the product serial number, original packaging, photos, or basic troubleshooting. Some brands ask you to register the product or obtain a case number before shipping it for repair or replacement. We don’t submit or approve claims, but we can point you to the correct support links and contact details.

Keep your invoice and packaging in a safe place, and report any functional issues to the manufacturer as soon as they appear. If you’re unsure whether a problem is covered, the manufacturer’s support team can confirm next steps and timelines. While we cannot intervene in decisions or outcomes, we’re happy to provide purchase documentation or guidance so you can move through the warranty process smoothly.

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