| Asking | Sold | |
|---|---|---|
| Good | €6793 | €7392 |
A used Sigma 28-70mm f/2.8 DG DN Contemporary is worth about €701 right now, based on 2 recent sales and 3 listings. 3 units for sale, asking €679 to €679.
| Date | Shop | Price | Time to sell |
|---|---|---|---|
| 2026-10-08 | kamerastore | €739 | 24 d |
| 2026-10-02 | kamerastore | €739 | 28 d |
The estimate blends recent sales with the median asking price. Each sale counts less the older it is, and the more recent sales there are, the more they carry: with none it is the asking price, with 5 recent ones half and half. So it moves gradually, never in a jump. Figures resting on fewer than that are marked low confidence. Medians, never averages. In an asking median no shop counts for more than a third (or an equal share, with fewer shops), so one shop’s price list does not decide it. Parts-only and brand-new units are left out.
Kamerastore Certified is Kamerastore’s own published average for units it grades Certified (tested and working), read 2026-10-10. It is their figure, not Kamarvo’s, and is not part of the estimate.
Shops: Kamerastore. 0 pages from shop archives.
Exchange rates: European Central Bank, 2026-10-09.