(Refurbished Good) Sigma 50-500mm f/4-6.3 EX DG HSM Autofocus Lens - F-mount - F-mount (for Nikon) Camera Lens

The Sigma 50-500mm f/4-6.3 EX DG HSM is a unique and powerful ultra-telephoto zoom lens that earned the nickname "Bigma" for its unprecedented 10x magnification range. Designed for full-frame and APS-C Nikon F-mount DSLRs, this lens is the perfect solution for photographers who need to transition instantly from standard-perspective shots to extreme long-range close-ups without the risk of changing lenses in the field.

The Power of 10x Zoom

This lens eliminates the need to carry multiple heavy telephotos. Its expansive range makes it exceptionally useful for:

Wildlife Photography: Capture an animal in its environment at 50mm, then zoom to 500mm to frame tight, detailed portraits.

Sports & Action: Perfect for field sports where the action moves rapidly from one end of the stadium to the other.

Aviation & Travel: Its versatility makes it a favorite at airshows and on safaris where subjects can appear at any distance.

Advanced EX DG Optics

As part of Sigma's professional EX (Excellence) series, this lens is built to high standards.

DG Optimization: The "DG" designation indicates that the lens coatings have been optimized specifically for digital sensors, reducing ghosting and flare caused by reflections off the image sensor.

Apochromatic (APO) Design: Utilizing four Special Low Dispersion (SLD) glass elements, the lens provides excellent correction for chromatic aberration, ensuring high-contrast images with accurate color throughout the zoom range.

HSM (Hyper Sonic Motor): The integrated ultrasonic motor provides fast, near-silent autofocus and allows for full-time manual focus override, essential for fine-tuning shots of distant subjects.

Rugged Handling and Professional Features

Built-in Tripod Collar: Given its weight and size, the lens includes a robust, rotating tripod socket (TS-31) to provide better balance when mounted on a tripod or monopod.

Zoom Lock Switch: A convenient lock prevents "zoom creep," ensuring the lens barrel doesn't extend while you are carrying the camera over your shoulder.

Rear Focusing System: This design ensures high precision throughout the entire focus range and keeps the front of the lens from rotating, making it easy to use circular polarizers.

Nikon Compatibility

This lens is fully compatible with Nikon F-mount FX (full-frame) and DX (crop-sensor) DSLRs. On a DX-format camera (like the D500 or D7500), it provides an even more impressive effective focal length of 75-750mm, giving you unmatched reach for small or distant subjects.