Are these two listings the same lens?

Yes. Both are the Sigma 18-50mm f/2.8 DC DN Contemporary for Sony E-mount, an APS-C zoom covering 27-75mm equivalent. The only real difference is the seller and the price.

Which is cheaper as of November 3, 2026?

The eBay listing at $489.95, about $9 less than $499.00 at Amazon. With 12 stores pricing it new, you may find it lower still.

Is it good for travel and everyday shooting?

Yes. It weighs 290g, covers 27-75mm equivalent and holds f/2.8 throughout the zoom. That suits travel, street and low light without a bag of primes.

How close can it focus?

12.1cm at the wide end and 30cm at the tele end, with 1:2.8 maximum magnification at wide. That is close enough for food and flower shots.

Does it work on full-frame Sony bodies?

It is an APS-C lens. On a full-frame body it works in crop mode, giving lower resolution. It is designed for APS-C cameras like the a6000 series and a6700.

Is the $9 saving worth buying from eBay?

Only if the seller's condition and return terms are clear. Check the 12 stores pricing it new first; a small gap rarely justifies weaker returns.

Sigma 18-50mm F2.8 DC DN Contemporary Lens For Sony E-Mount vs Sigma 18-50mm f/2.8 DC DN Contemporary

These are the same lens: the Sigma 18-50mm F2.8 DC DN Contemporary for Sony E-mount. Buy whichever listing is cheapest from a seller you trust. As of November 3, 2026, the best new price is $489.95 at eBay versus $499.00 at Amazon, a $9.05 gap. The Amazon listing is the only new-price store shown for that entry, while the eBay price is one of 12 stores pricing it new, so check those other stores before paying either price.

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