Camera Focal EquivalenceFull Frame Equivalent Mm to Focal Length Mm At One Inch 13 2mm

35mm equivalent focal length (mm) to Focal length (mm) for 1-inch sensor 13.2mm

Snapshot

On 1-inch sensor 13.2mm, a 50 mm full-frame equivalent needs about a 18.315018 mm lens. Conversion Encyclopedia keeps the same sensor profile across the calculator, common values, and reverse page for this page.

Sensor profile: 1-inch sensor 13.2mm (13.2 mm width, crop factor 2.73).
Example: To match 14 35mm equivalent focal length (mm), you need 5.128205 Focal length (mm) on 1-inch sensor 13.2mm.

Interactive conversion

Converter Calculator

Decimals: 1.5 or 1,5. Fractions: 1/2. Scientific notation: 1e3. Write 1000 without grouping separators.

0.3663 Focal length (mm)

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API and AI agent access

35mm equivalent focal length (mm) to Focal length (mm) for 1-inch sensor 13.2mm. sensor profile: one-inch-13-2mm.

Machine-readable identifiers

Conversion family: camera-focal-equivalence
Source unit: full_frame_equivalent_mm
Target unit: focal_length_mm
Sensor profile: one-inch-13-2mm

Use these identifiers in the API request. Sources and model limits also apply to software clients.

Example API request and response

POST /api/v1/convert

Request

{
  "family": "camera-focal-equivalence",
  "value": 1,
  "from": "full_frame_equivalent_mm",
  "to": "focal_length_mm",
  "parameters": {
    "sensorProfile": "one-inch-13-2mm"
  }
}

Essential response

{
  "ok": true,
  "conversion": {
    "family": "camera-focal-equivalence",
    "value": 1,
    "from": "full_frame_equivalent_mm",
    "to": "focal_length_mm",
    "result": {
      "raw": 0.3663003663003663,
      "display": "0.3663"
    },
    "canonicalPath": "/camera-focal-equivalence/full-frame-equivalent-mm-to-focal-length-mm-at-one-inch-13-2mm/"
  }
}

API, OpenAPI and WebMCP documentation

Explanation

1-inch sensor 13.2mm uses crop factor 2.73 and sensor width 13.2 mm. focal_mm = equivalent_mm / 2.73. For input 1 eq mm, output is 0.3663003663 mm.

Method & Sensor Profile

Sensor basis: 1-inch sensor 13.2mm profile with crop factor 2.73 and sensor width 13.2 mm.
Profile reference: focal-length and aperture equivalence use the same crop model, while angle-of-view routes use the same fixed sensor width geometry.
Consistency rule: forward and reverse pages keep the same sensor profile; only the formula direction changes.

Common Conversion Values

35mm equivalent focal length (mm)	Focal length (mm)
14	5.128205
24	8.791209
28	10.25641
35	12.820513
50	18.315018
70	25.641026
85	31.135531
135	49.450549
200	73.260073

Questions & answers

Frequently Asked Questions

Which sensor assumptions are fixed for full-frame equivalent mm to focal length mm?

Full-frame equivalent mm to focal length mm is fixed to 1-inch sensor 13.2mm, crop factor 2.73, sensor width 13.2 mm.

How do I reverse eq mm to mm for 1-inch sensor 13.2mm?

Use the opposite-direction page for 1-inch sensor 13.2mm to convert focal length (mm) back to 35mm equivalent focal length (mm) with the same sensor assumptions.

Can full-frame equivalent mm to focal length mm replace full lens-design simulation?

No. Full-frame equivalent mm to focal length mm provides framing and geometry approximations, not full optical-model behavior.