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.
Converter Calculator
0.147059 Focal length (mm)
SwitchExplanation
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 |
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.