Sigma 135-400mm f/4.5-5.6 DG APO RF

Sigma 135-400mm f/4.5-5.6 DG APO RF - Like New | Pristine High-Reach Telephoto Zoom for Wildlife and Sports

The Sigma 135-400mm f/4.5-5.6 DG APO RF (S/N: 4002452) is a powerful telephoto zoom lens designed for photographers who need significant reach without the weight of a professional prime lens. Part of Sigma's "DG" (Digital Grade) series, it features optimized coatings to reduce ghosting and flare—a common challenge in digital photography. This lens utilizes an apochromatic (APO) design with Special Low Dispersion (SLD) glass elements to minimize chromatic aberration, ensuring sharp, high-contrast images even at the maximum 400mm focal length. Equipped with a Rear Focusing (RF) system, it provides fast autofocus and a non-rotating front element, making it a highly capable tool for capturing distant subjects like wildlife, aircraft, or field sports.

Key Features

• Impressive 135-400mm focal range for powerful telephoto magnification

• APO (Apochromatic) design with SLD glass for superior color accuracy and sharpness

• DG coating optimized for both digital SLR and 35mm film camera sensors

• Rear Focusing (RF) system for responsive autofocus performance

• Non-rotating front lens element for easy use with circular polarizing filters

• Built-in tripod collar for balanced mounting and stable shooting on a support system

• Multi-layer lens coating to reduce internal reflections and ghosting

Technical Specifications

• Camera Type: Lenses

• Lens Mount:  Canon EF

• Focal Length: 135-400mm

• Aperture Range: f/4.5 - f/32

• Category: Lenses ▸ Telephoto Zoom Lens

• Filter Size: 77mm

Specialist Note "The Sigma 135-400mm (S/N: 4002452) is a fantastic value proposition for photographers stepping into serious wildlife or bird photography. At the 400mm end, it provides the kind of 'pull' that brings distant subjects right into the frame with impressive detail. What I appreciate about this specific 'DG' version is the inclusion of a dedicated tripod collar; at these focal lengths, stability is everything, and being able to rotate the lens for vertical shots while on a tripod is a huge workflow advantage. Finding this lens in 'Like New' condition is a rare treat—it feels as robust and smooth as the day it left the factory, making it a reliable partner for your next outdoor adventure."

Condition Report Like new. The lens barrel (S/N: 4002452) is in pristine cosmetic and functional condition, showing virtually no signs of previous use. The optics are crystal clear, free from fungus, haze, or scratches. The zoom and focus rings operate with factory-smooth resistance throughout the range. The tripod collar is immaculate and locks securely. All autofocus and aperture mechanisms have been fully tested and are operational.

What's Included

• Sigma 135-400mm f/4.5-5.6 DG APO RF Lens (S/N: 4002452)

• Front Lens Cap

• Rear Lens Cap

• Removable Tripod Collar

• Dedicated Lens Hood