Camera Focal EquivalenceHorizontal Angle of View Degrees to Focal Length Mm At Micro Four Thirds 17 3mm

Horizontal angle of view (degrees) to Focal length (mm) for Micro Four Thirds 17.3mm

Snapshot

On Micro Four Thirds 17.3mm, a 50 horizontal angle of view needs about a 18.549985 mm lens. Conversion Encyclopedia keeps the same sensor profile across the calculator, common values, and reverse page for this page.

Sensor profile: Micro Four Thirds 17.3mm (17.3 mm width, crop factor 2).
Example: To reach 14 Horizontal angle of view (degrees), you need 70.448597 Focal length (mm) on Micro Four Thirds 17.3mm.

Interactive conversion

Converter Calculator

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

991.191824 Focal length (mm)

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API and AI agent access

Horizontal angle of view (degrees) to Focal length (mm) for Micro Four Thirds 17.3mm. sensor profile: micro-four-thirds-17-3mm.

Machine-readable identifiers

Conversion family: camera-focal-equivalence
Source unit: horizontal_angle_of_view_degree
Target unit: focal_length_mm
Sensor profile: micro-four-thirds-17-3mm

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": "horizontal_angle_of_view_degree",
  "to": "focal_length_mm",
  "parameters": {
    "sensorProfile": "micro-four-thirds-17-3mm"
  }
}

Essential response

{
  "ok": true,
  "conversion": {
    "family": "camera-focal-equivalence",
    "value": 1,
    "from": "horizontal_angle_of_view_degree",
    "to": "focal_length_mm",
    "result": {
      "raw": 991.1918236185281,
      "display": "991.191824"
    },
    "canonicalPath": "/camera-focal-equivalence/horizontal-angle-of-view-degrees-to-focal-length-mm-at-micro-four-thirds-17-3mm/"
  }
}

API, OpenAPI and WebMCP documentation

Explanation

Micro Four Thirds 17.3mm uses crop factor 2 and sensor width 17.3 mm. focal_mm = 17.3 / (2 x tan(HFOV/2)). For input 1 deg, output is 991.191823619 mm.

Method & Sensor Profile

Sensor basis: Micro Four Thirds 17.3mm profile with crop factor 2 and sensor width 17.3 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

Horizontal angle of view (degrees)	Focal length (mm)
14	70.448597
24	40.69505
28	34.693255
35	27.434295
50	18.549985
70	12.35348
85	9.439819
135	3.582947
200	—

Questions & answers

Frequently Asked Questions

Which sensor assumptions are fixed for horizontal angle of view (degrees) to focal length mm?

Horizontal angle of view (degrees) to focal length mm is fixed to Micro Four Thirds 17.3mm, crop factor 2, sensor width 17.3 mm.

How do I reverse deg to mm for Micro Four Thirds 17.3mm?

Use the opposite-direction page for Micro Four Thirds 17.3mm to convert focal length (mm) back to horizontal angle of view (degrees) with the same sensor assumptions.

Can horizontal angle of view (degrees) to focal length mm replace full lens-design simulation?

No. Horizontal angle of view (degrees) to focal length mm provides framing and geometry approximations, not full optical-model behavior.