Which is better for low light?

The 18-50mm F2.8. Its constant F2.8 lets in about 1.3 stops more light at the wide end than the 16-300mm's F3.5, and far more at the long end where the 16-300mm drops to F6.7.

Which is better for travel and wildlife?

The 16-300mm. It reaches 450mm equivalent and adds optical stabilization, so you can shoot distant subjects without carrying a second lens.

Is the 16-300mm worth the extra $195?

Only if you need the reach. At $694.00 at Adorama versus $499.00 at Amazon as of November 3, 2026, you pay for the 18.8x zoom and stabilization, and give up the F2.8 aperture and half the weight.

Which focuses closer?

The 18-50mm focuses to 12.1cm at the wide end. The 16-300mm focuses to 17cm and reaches 1:2 magnification at 70mm, so it can fill the frame more at that focal length.

Do both work on the same Sony E-mount APS-C bodies?

Yes. Both are APS-C lenses for Sony E-mount, so they fit the same cameras and give the equivalent ranges listed above.

Which is easier to carry all day?

The 18-50mm at 290g and 74.5mm long. The 16-300mm weighs 615g and is 121.4mm long.

Sigma 18-50mm F2.8 DC DN Contemporary Lens For Sony E-Mount vs Sigma 16-300mm F3.5-6.7 DC OS Contemporary Lens For Sony E-Mount

Buy the 18-50mm F2.8 if you shoot people, street or low light and want a small, fast lens. Buy the 16-300mm if you want one lens that covers wide angle to super-telephoto for travel, wildlife or sports. The 18-50mm is $499.00 at Amazon as of November 3, 2026; the 16-300mm is $694.00 at Adorama as of the same date.

Today the Sigma 18-50mm F2.8 DC DN Contemporary Lens For Sony E-Mount costs $195.00 less at its best price.

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