The everyday lens for pros — or those who aspire to be

If you count serious photographers among your friends, you know they switch out lenses... well, often, if not all the time. That is, if they have the luxury of time and the ability to carry a lot.

But what does an experienced photographer carry when they're on vacation, or on any other occasion where they can only carry one lens? They just might have this Sigma Photo 50-500mm lens in tow. Certainly they'd love its amazing versatility — it can capture everything from landscapes and group shots (on full-frame cameras) to the minute details of a Gothic cathedral, while delivering impressive light sensitivity for its class. And even on an APS-C camera, the effective 75-750mm focal length on most cameras in that class gives you a range from the sweet spot for portraits to super-telephoto territory.

Fast action sports at your daughter's lacrosse match? The long reach will get you the dramatic close-up from across the field. A rare, colorful finch near the top of the canopy during your woodland hike? Optical stabilization lets you bring home sharp, vibrant pictures while working hand-held because you can shoot at slower shutter speeds. And quiet, fast autofocus means you'll be at the ready for candids while traveling, even if the ideal moment is fleeting.

Careful attention to the optical build quality has yielded a lens that's sturdy, sharp across the entire frame, and free of color irregularities throughout the zoom range.

Product Highlights:

  • 50-500mm f/4.5-6.3 DG APO OS HSM telephoto 10X zoom lens
  • compatible with Canon EOS film and digital SLR cameras
  • For Nikon and Canon mounts, Optical Stabilizer (OS) function will not work with film SLR cameras except Nikon F6 and Canon EOS-1V.
  • effective focal length:
    • 50-500mm with full-frame digital or film cameras
    • 80-800mm with Canon EOS APS-C sensor cameras
  • built-in optical stabilization allows in-focus shots with longer exposure times
  • 4 special low-dispersion glass elements for impressive contrast and clarity
  • super multi-layer lens coating minimizes flaring and ghosting
  • minimum aperture: f/22
  • minimum focus distance: 19.7" (W) to 70.9" (T)
  • constructed of 21 elements in 6 groups
  • filter size: 95mm (step-down ring provided to allow 86mm filter use with APS-C cameras)
    • It is not possible to use a polarizing filter with the step down ring. If you attach a polarizing filter, you may not be able to remove it from the lens again.
  • lens is 8-5/8" long, 4-1/8" in diameter
  • weight: 69.5 ounces
  • warranty: 3 years
  • Our 60-day money-back guarantee
Supplied Accessories:
  • step down ring
  • carrying case, lens hood, front and rear lens caps

Hands-on research

What's in the box?

  • APO 50-500mm F4.5-6.3 DG OS HSM zoom lens for Canon
  • LCF-95III Front lens cap (installed)
  • Rear lens cap (installed)
  • Tripod Collar
  • 95mm Lens hood (installed)
  • APS-C Hood Adapter
  • Filter step-down ring (86mm)
  • Neck strap
  • Zippered storage case
  • Storage case strap
  • Instructions
  • Warranty sheet
  • Warranty sticker
  • APS-C Hood Adapter instruction sheet

Features and Specs

Brand Compatibility Canon
Image Stabilization Yes
Focal Length 50-500mm
Maximum Aperture f/4.5 (W) - 6.3 (T)
Weight 69.5 ounces
Parts Warranty 4 Years
Labor Warranty 4 Years

Product Research


Overview: The Sigma 50-500mm F4.5-6.3 APO DG OS HSM (Model #738) is a high quality, high-powered ultra-telephoto zoom lens. Typical uses include travel, and nature and wildlife photography . The lens has the Canon F-mount, and comes with a lens hood, and front and rear caps. The included tripod collar allows you to attach a tripod at the lens (instead of at the camera) for better balance and control.

Optics: The lens features four SLD (special low dispersion) glass elements for excellent sharpness and color correction throughout the entire zoom range. Super Multi-Layer Coating helps to reduce lens flare and ghosting.

Lens Hood: The lens includes a bayonet-type detachable lens hood to help prevent stray light from entering the lens, causing flare, and to protect the lens from rain, snow, and dust. When not in use, the lens hood can be inverted and mounted onto the lens backwards for storage.

Focus Mode Switch: The lens features a two-way switch for setting the focus mode: AF (auto focus) or M (manual focus).

Optical Stabilization (OS): The lens also has built-in optical stabilization with two modes. Using the OS feature, it is possible to get sharp results at shutter speeds approximately 4 stops slower than you could without it. Mode 1 stabilizes the image when the lens is zoomed in on a distant object, and eliminates blurry images caused by camera shake. Mode 2 detects vertical camera shake, and is most effective when panning the camera horizontally to follow a moving subject.

Zoom Lock: The lens can extend an additional 3-1/2" when zoomed completely out. The Zoom Lock switch helps to prevent the lens from extending on its own when the lens is pointed downward.

Sigma DG Lenses: This Sigma DG lens is designed for use with full-frame digital SLRs. An APS-C hood adapter is included to provide more effective shading when the lens is used with a digital camera with an APS-C size image sensor.

HSM: The lens has a hyper-sonic motor (HSM) that provides a quiet, high-speed auto focusing mechanism.

Step-down Ring: The 50-500mm zoom lens has a 95mm filter thread. Included with the lens is a step-down ring that allows you to attach 86mm screw-on filters. Using the step-down ring with full-frame cameras causes vignetting, so the ring should only be used with cameras with APS-C sized image sensors. You should not use a Polarizing Filter with the step-down ring, because you may not be able to remove it from the lens again.

Flash Photography: Because of the length of the lens, it is recommended that only an external flash unit be used. Using the camera's built-in flash will result in shadows in the photograph caused by the lens barrel.

Optional Teleconverters: The lens is compatible with Sigma's 1.4x EX or 2.0x EX APO Tele-converters. With the 1.4x teleconverter attached, the lens has a focal length of 70-70mm. Using the 2.0x teleconverter, the focal length becomes 100-1000mm.


  • Lens Construction: 22 Elements in 16 Groups
  • Angle of View: 46.8°-5.0°
  • Number of Diaphragm Blades: 9
  • Maximum Aperture: f/4.5 (W) f/6.3 (T)
  • Minimum Aperture: f/22 (W-T)
  • Minimum Focusing Distance: 19.7" (at 50mm); 70.9" (at 500mm)
  • Filter Size: 95mm (86mm with step-down ring)
  • Maximum Magnifications: 1:3.1
  • Dimensions: Diameter=4.117", Length=8.94", (9.477" w/lens caps)
  • Weight: 69.5 ounces

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

Sigma Photo 50-500mm f/4.5-6.3 Lens Reviews

Average Customer Review:

3 reviews
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Written By mickki, cayuga,ny on Saturday, September 14, 2013

Crutchfield Customer Review (What's this?)

Totally awsome.......can use hand held with no trippod....yeah!

Pros: Clear pics from 50-500....dont need a tripod!

Cons: Large when using it with traveling.....but well worth it

Sigma Lens 50-500mm

Written By Cheryl, Charlottesville, VA on Tuesday, June 04, 2013

It takes great pictures. It is very heavy, though.

Sigma 50-500. Great lens.

Written By MrDave, New Jersey on Sunday, June 02, 2013

Crutchfield Customer Review (What's this?)

I've had this lens a month now. Paired to an older canon 400d body. It took some getting used to. It is on the heavy side. Yet the more I use it the more I love it. Takes great clear photos at all lens distances. I use it mostly for birding and have gotten some great in flight and otherwise shots. I've also used it for up close flower shots and landscape shots all of which came out great. I find I need no other lens for the type of shots I take. It does it all. I'd highly recommend this lens.

Pros: Excellent clear photos. All around use.

Cons: Weight as it is a bit on the heavy side.

Get everything you’ll need to enjoy your new Sigma Photo 50-500mm f/4.5-6.3 Lens

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