Sigma APO DG OS HSM 50-500mm f/4.5-6.3

The Sigma 50-500mm is a 10x superzoom with best-in-class versatility and excellent stabilization. Optical quality and build are just average, and it's heavy with no weather sealing. Worth it if you need huge reach on a budget and can live with the compromises.

The 10x zoom range is the headline act. Versatility sits at the 97th percentile in our database, and that's earned. Four SLD elements and Sigma's Super Multi-Layer Coating keep sharpness and color decent across the range, though optical quality lands around the 60th percentile, so don't expect prime-level crispness at 500mm. The HSM autofocus is quiet and reasonably quick, but again, it's middle of the pack at the 54th percentile. Stabilization is a genuine strength here, rated at 4 stops and sitting in the 92nd percentile. That OS system is what makes the long end usable without a tripod. The f/4.5-6.3 aperture is fine for daylight but gets tight fast when the light drops.

Against something like the Tamron 28-300mm f/4-7.1, the Sigma gives you way more reach at 500mm versus 300mm, but the Tamron is lighter and built for mirrorless systems. The Sony E 18-135mm f/3.5-5.6 OSS is a completely different animal, smaller, sharper for its range, but it tops out at 135mm. If you need actual super-telephoto reach on a budget, the Sigma wins by default. The Panasonic Leica 12-35mm and Meike 85mm f/1.4 aren't even playing the same game. The Sigma's real competition is other old superzooms, and in that crowd, the 500mm end is the differentiator.

Pricing on this one is all over the place since it's an older design and often sold as an international version with no warranty. That no-warranty part is a real consideration. If you can grab one cheap, the reach-per-dollar ratio is excellent. But you're rolling the dice on a used or gray-market copy. The budget score of 57.8 out of 100 reflects that trade-off. You get a ton of focal length for the money, just don't expect modern build quality or warranty support.

The Sigma 50-500mm f/4.5-6.3 is a 10x zoom that goes from standard framing all the way out to serious super-telephoto territory. That range is the whole story here. You can shoot a portrait at 50mm and then swing around and grab a bird at 500mm without swapping glass. The OS stabilization is rated for 4 stops, which helps a lot when you're handholding a lens this long.

It's a chunky piece of kit at 1970g with a 95mm filter thread. Not weather sealed either. But for the price these used to go for, the reach is hard to argue with. Our database puts versatility at the 97th percentile, which is basically the entire point of this lens.

Skip this if you need weather sealing or shoot in rough conditions, the build quality is the weakest part of this lens at the 7th percentile. Also skip it if you're shooting in low light often, f/6.3 at 500mm demands daylight or a tripod. And if you're carrying it on long hikes, the 1970g weight will wear on you fast.

This lens is for someone who wants maximum reach without spending a fortune. Wildlife shooters, airshow fans, and anyone who hates changing lenses will appreciate the 50-500mm range. The stabilization makes handheld shooting at the long end actually possible. Just know that you're buying an older, heavy, non-weather-sealed lens with middling optical performance. If that trade-off sounds fine, go for it.