{
    "type": "version",
    "name": "Sigma 10-20mm f/4 EX DC HSM",
    "url": "https://www.cameraworth.com/s/sigma/10-20mm-f-4/v/10-20mm-f-4-ex-dc-hsm/",
    "product": {
        "name": "Sigma 10-20mm f/4",
        "url": "https://www.cameraworth.com/s/sigma/10-20mm-f-4/"
    },
    "display_piece": false,
    "answer": "The Sigma 10-20mm f/4 EX DC HSM has 2 recorded sales: £40 (25 Nov 2025, Special Auction Services) and £60 (10 Oct 2023, Special Auction Services). That is too few for a typical price.",
    "figure": {
        "grade": "sales_only",
        "grade_label": "Sales only",
        "modifiers": [],
        "n": 2,
        "median_gbp": null,
        "middle_half_gbp": null,
        "period": [
            "2023-10-10",
            "2025-11-25"
        ],
        "last_3_years": null,
        "pools": null,
        "one_sale_moves_this": null,
        "extras": null,
        "basis": "Auction hammer prices with the buyer’s premium removed; eBay as sold"
    },
    "maybe_this_version": 0,
    "sales_shown": [
        {
            "id": 4375,
            "date": "2025-11-25",
            "venue": "Special Auction Services",
            "title": "A Sigma EX 10-20mm f/4-5.6 DC HSM Lens.",
            "price": 40,
            "currency": "GBP",
            "gbp": 40,
            "basis": "hammer",
            "version": "EX DC HSM",
            "version_status": "matched",
            "in_typical_price": true,
            "set_apart": null,
            "flags": [],
            "source_url": null,
            "lot": "347"
        },
        {
            "id": 24118,
            "date": "2023-10-10",
            "venue": "Special Auction Services",
            "title": "A Sigma DX 10-20mm f/4-5.6 DC HSM Lens",
            "price": 60,
            "currency": "GBP",
            "gbp": 60,
            "basis": "hammer",
            "version": "EX DC HSM",
            "version_status": "matched",
            "in_typical_price": true,
            "set_apart": null,
            "flags": [],
            "source_url": null,
            "lot": "569"
        }
    ],
    "citation": "“Sigma 10-20mm f/4 EX DC HSM: 2 recorded sales, 2023–2025; no typical price (method v1).” cameraworth.com, retrieved 8 October 2026. https://www.cameraworth.com/s/sigma/10-20mm-f-4/v/10-20mm-f-4-ex-dc-hsm/",
    "method": {
        "version": 1,
        "url": "https://www.cameraworth.com/methodology/"
    },
    "computed_at": "2026-10-08 00:10:00.968880",
    "attribution": "Data from cameraworth.com — a public register of what cameras and lenses actually sold for. Cite the page URL and the retrieval date; see /methodology/ for how each figure is made."
}