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

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

Snapshot

On Micro Four Thirds 17.3mm, a 50 mm lens gives about 19.630043 horizontal angle of view. 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: For 14 Focal length (mm), this gives 63.420284 Horizontal angle of view (degrees) 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.

166.81097 Horizontal angle of view (degrees)

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API and AI agent access

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

Machine-readable identifiers

Conversion family: camera-focal-equivalence
Source unit: focal_length_mm
Target unit: horizontal_angle_of_view_degree
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": "focal_length_mm",
  "to": "horizontal_angle_of_view_degree",
  "parameters": {
    "sensorProfile": "micro-four-thirds-17-3mm"
  }
}

Essential response

{
  "ok": true,
  "conversion": {
    "family": "camera-focal-equivalence",
    "value": 1,
    "from": "focal_length_mm",
    "to": "horizontal_angle_of_view_degree",
    "result": {
      "raw": 166.81096993554405,
      "display": "166.81097"
    },
    "canonicalPath": "/camera-focal-equivalence/focal-length-mm-to-horizontal-angle-of-view-degrees-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. HFOV = 2 x atan(17.3 / (2 x focal_mm)) in degrees. For input 1 mm, output is 166.810969936 deg.

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

Focal length (mm)	Horizontal angle of view (degrees)
14	63.420284
24	39.640016
28	34.334826
35	27.764135
50	19.630043
70	14.088821
85	11.621369
135	7.332325
200	4.952998

Questions & answers

Frequently Asked Questions

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

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

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

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

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

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