Camera Focal EquivalenceHorizontal Angle of View Degrees to Focal Length Mm At Compact 1 2 5

Horizontal angle of view (degrees) to Focal length (mm) for Compact 1/2.5" class

Snapshot

On Compact 1/2.5" class, a 50 horizontal angle of view needs about a 6.17618 mm lens. Conversion Encyclopedia keeps the same sensor profile across the calculator, common values, and reverse page for this page.

Sensor profile: Compact 1/2.5" class (5.76 mm width, crop factor 6.8).
Example: To reach 14 Horizontal angle of view (degrees), you need 23.455718 Focal length (mm) on Compact 1/2.5" class.

Interactive conversion

Converter Calculator

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

330.015312 Focal length (mm)

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API and AI agent access

Horizontal angle of view (degrees) to Focal length (mm) for Compact 1/2.5" class. sensor profile: compact-1-2-5.

Machine-readable identifiers

Conversion family: camera-focal-equivalence
Source unit: horizontal_angle_of_view_degree
Target unit: focal_length_mm
Sensor profile: compact-1-2-5

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": "compact-1-2-5"
  }
}

Essential response

{
  "ok": true,
  "conversion": {
    "family": "camera-focal-equivalence",
    "value": 1,
    "from": "horizontal_angle_of_view_degree",
    "to": "focal_length_mm",
    "result": {
      "raw": 330.01531237241164,
      "display": "330.015312"
    },
    "canonicalPath": "/camera-focal-equivalence/horizontal-angle-of-view-degrees-to-focal-length-mm-at-compact-1-2-5/"
  }
}

API, OpenAPI and WebMCP documentation

Explanation

Compact 1/2.5" class uses crop factor 6.8 and sensor width 5.76 mm. focal_mm = 5.76 / (2 x tan(HFOV/2)). For input 1 deg, output is 330.015312372 mm.

Method & Sensor Profile

Sensor basis: Compact 1/2.5" class profile with crop factor 6.8 and sensor width 5.76 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	23.455718
24	13.549335
28	11.551049
35	9.134193
50	6.17618
70	4.113066
85	3.142968
135	1.192935
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 Compact 1/2.5" class, crop factor 6.8, sensor width 5.76 mm.

How do I reverse deg to mm for Compact 1/2.5" class?

Use the opposite-direction page for Compact 1/2.5" class 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.