35mm equivalent focal length (mm) to Focal length (mm) for Compact 1/2.5" class
Snapshot
On Compact 1/2.5" class, a 50 mm full-frame equivalent needs about a 7.352941 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 match 14 35mm equivalent focal length (mm), you need 2.058824 Focal length (mm) on Compact 1/2.5" class.
- Use the reverse page if you need the opposite direction with the same basis.
Use the interactive calculator below for custom values and the common-value table for quick checks.
Interactive conversion
Converter Calculator
0.147059 Focal length (mm)
SwitchMachine access
Available to apps and AI agents
35mm equivalent focal length (mm) to Focal length (mm) for Compact 1/2.5" class can be requested through Conversion Encyclopedia's structured interfaces by software and compatible AI agents. The compact-1-2-5 sensor profile tells the conversion engine which camera sensor setup belongs to the calculation.
Machine-readable identifiers
- Conversion family
camera-focal-equivalence- Source unit
full_frame_equivalent_mm- Target unit
focal_length_mm- Sensor profile
compact-1-2-5
The JSON API and OpenAPI specification use the identifiers to reach the conversion engine. WebMCP lets compatible AI agents request the same calculation.
Example API request and response
POST /api/v1/convertRequest
{
"family": "camera-focal-equivalence",
"value": 1,
"from": "full_frame_equivalent_mm",
"to": "focal_length_mm",
"parameters": {
"sensorProfile": "compact-1-2-5"
}
}Essential response
{
"ok": true,
"conversion": {
"family": "camera-focal-equivalence",
"value": 1,
"from": "full_frame_equivalent_mm",
"to": "focal_length_mm",
"result": {
"raw": 0.14705882352941177,
"display": "0.147059"
},
"canonicalPath": "/camera-focal-equivalence/full-frame-equivalent-mm-to-focal-length-mm-at-compact-1-2-5/"
}
}Explanation
Formula: focal_mm = equivalent_mm / 6.8. Why: this page keeps Compact 1/2.5" class fixed, so crop factor and sensor width stay explicit for every calculation.
Compact 1/2.5" class: a sensor profile with crop factor 6.8 and sensor width (horizontal) 5.76 mm, used as the fixed framing basis for this page.
35mm equivalent focal length (mm): a camera-equivalence quantity in this family that depends on the selected crop model.
Focal length (mm): a camera-equivalence quantity in this family that depends on the selected crop model.
This route is useful when you know the full-frame equivalent focal length and need the actual lens focal length on Compact 1/2.5" class.
This page is sensor-profile dependent rather than universal because camera equivalence changes with sensor geometry (Compact 1/2.5" class).
Common Conversion Values
| 35mm equivalent focal length (mm) | Focal length (mm) |
|---|---|
| 14 | 2.058824 |
| 24 | 3.529412 |
| 28 | 4.117647 |
| 35 | 5.147059 |
| 50 | 7.352941 |
| 70 | 10.294118 |
| 85 | 12.5 |
| 135 | 19.852941 |
| 200 | 29.411765 |
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 Compact 1/2.5" class, crop factor 6.8, sensor width 5.76 mm.
How do I reverse eq mm 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 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.