{
    "type": "product",
    "name": "Contax G Biogon 21mm/f2.8",
    "url": "https://www.cameraworth.com/c/contax/g-biogon-21mm-f2-8/",
    "brand": {
        "name": "Contax",
        "url": "https://www.cameraworth.com/c/contax/"
    },
    "answer": "The Contax G Biogon 21mm/f2.8 sells for about £359 (median of only 4 recorded sales, 2011–2026; indicative).",
    "figure": {
        "grade": "indicative",
        "grade_label": "Indicative",
        "modifiers": [],
        "n": 4,
        "median_gbp": 359,
        "middle_half_gbp": null,
        "period": [
            "2011-05-28",
            "2026-06-02"
        ],
        "last_3_years": null,
        "pools": null,
        "one_sale_moves_this": {
            "without_lowest": 421,
            "without_flagged": null,
            "without_highest": 297
        },
        "extras": {
            "median_usd": 542,
            "median_eur": 412,
            "note": "USD and EUR from each sale converted at its month’s ECB rate"
        },
        "basis": "Auction hammer prices with the buyer’s premium removed; eBay as sold"
    },
    "reason": null,
    "versions": [
        {
            "name": "champagne",
            "url": "https://www.cameraworth.com/c/contax/g-biogon-21mm-f2-8/v/champagne/",
            "kind": "working",
            "n": 1,
            "grade": "sales_only",
            "median_gbp": null
        },
        {
            "name": "black",
            "url": "https://www.cameraworth.com/c/contax/g-biogon-21mm-f2-8/v/black/",
            "kind": "working",
            "n": 1,
            "grade": "sales_only",
            "median_gbp": null
        }
    ],
    "set_apart": [],
    "version_status": {
        "matched": 2,
        "pending": 1,
        "undeterminable": 1
    },
    "book_guide": null,
    "sales_shown": [
        {
            "id": 74905,
            "date": "2026-06-02",
            "venue": "eBay",
            "title": "[Almost Unused] Contax Carl Zeiss Biogon T* 21mm f2.8 For G1 G2 From JAPAN",
            "price": 297,
            "currency": "GBP",
            "gbp": 297,
            "basis": "marketplace",
            "version": "champagne",
            "version_status": "matched",
            "in_typical_price": true,
            "set_apart": null,
            "flags": [],
            "source_url": "https://www.ebay.co.uk/itm/168384216686",
            "lot": null
        },
        {
            "id": 74920,
            "date": "2026-06-01",
            "venue": "eBay",
            "title": "[Almost Unused] Contax Carl Zeiss T* G Biogon 21mm f/2.8 Black Lens From JAPAN",
            "price": 750,
            "currency": "USD",
            "gbp": 562,
            "basis": "marketplace",
            "version": "black",
            "version_status": "matched",
            "in_typical_price": true,
            "set_apart": null,
            "flags": [],
            "source_url": "https://www.ebay.com/itm/236687015154",
            "lot": null
        },
        {
            "id": 721,
            "date": "2025-11-25",
            "venue": "Special Auction Services",
            "title": "A Contax Carl Zeiss T* 21mm f/2.8 Biogon Lens",
            "price": 210,
            "currency": "GBP",
            "gbp": 210,
            "basis": "hammer",
            "version": null,
            "version_status": "pending",
            "in_typical_price": true,
            "set_apart": null,
            "flags": [],
            "source_url": null,
            "lot": "287"
        },
        {
            "id": 8712,
            "date": "2011-05-28",
            "venue": "Leitz Photographica Auction",
            "title": "Carl Zeiss Biogon 4,5/21mm",
            "price": 480,
            "currency": "EUR",
            "gbp": 421,
            "basis": "hammer",
            "version": null,
            "version_status": "undeterminable",
            "in_typical_price": true,
            "set_apart": null,
            "flags": [
                "title_miss"
            ],
            "source_url": "https://www.leitz-auction.com/en/Carl-Zeiss-Biogon-4-5-21mm/AI-19-12669",
            "lot": "AI_19_12669"
        }
    ],
    "sales_ledger": "https://www.cameraworth.com/c/contax/g-biogon-21mm-f2-8/sales/",
    "citation": "“Contax G Biogon 21mm/f2.8: about £359, the median of 4 recorded sales, 2011–2026 (Indicative, method v1).” cameraworth.com, retrieved 8 October 2026. https://www.cameraworth.com/c/contax/g-biogon-21mm-f2-8/",
    "method": {
        "version": 1,
        "url": "https://www.cameraworth.com/methodology/"
    },
    "computed_at": "2026-10-08 01:55:00.813113",
    "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."
}