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Millilambert to Apostilb Conversion Guide
Easily convert luminance values from millilambert (mL) to apostilb (asb) with this straightforward online tool. Useful for cinematography, imaging, and lighting engineering.
Please check your input. It must be a valid numeric value.
Millilambert [mL] to Apostilb Conversion Table
| Millilambert [mL] | Apostilb |
|---|
Custom Unit Conversion Table Generator – Instant Printable Conversion Tables
Enter the starting number (positive decimal or integer ≥ 0). Example: 0.1, 1, 5.
Enter the ending number (positive decimal or integer > Start Value). Example: 10, 50, 100.
Enter the step size (positive decimal > 0 and < End Value – Start Value). Example: 1.0, 2.5.
| Millilambert [mL] | Apostilb |
|---|
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What Is This Tool?
This converter enables users to change luminance values from the millilambert unit to the apostilb unit. Both units are non-SI, historical measures of luminance widely used in fields like cinematography, imaging, and lighting design. The tool helps translate legacy brightness data for better interpretation and comparison.
How to Use This Tool?
- Enter the luminance value in millilambert you wish to convert
- Select millilambert as the input unit and apostilb as the output unit
- Click the convert button to see the result in apostilb
- Use the output to compare or analyze brightness levels between units
Key Features
- Converts luminance values from millilambert (mL) to apostilb (asb)
- Supports legacy unit conversions used in cinematography and imaging
- Easy, browser-based access with no installation needed
- Clear display of conversion results along with examples
Examples
- 2 millilambert is equal to 20 apostilb
- 0.5 millilambert converts to 5 apostilb
Common Use Cases
- Specifying display and projector screen luminance in cinematography
- Characterizing luminance of photographic prints or film in imaging labs
- Reporting brightness levels in older photometric and cinematography specifications
- Converting legacy luminance measurements to interpret or calibrate equipment
- Describing luminance of diffusely reflecting surfaces in lighting engineering
Tips & Best Practices
- Verify units carefully before performing conversions to avoid errors
- Use this tool to help translate historical data for modern analysis
- Remember that these units are non-SI and mainly for legacy use
- Cross-check converted values when calibrating imaging or lighting equipment
Limitations
- Millilambert and apostilb are largely obsolete non-SI units
- Modern luminance work typically uses candela per square metre instead
- Be cautious interpreting old data to avoid confusion from differing definitions
- Conversion context may vary depending on specific measurement conditions
Frequently Asked Questions
- What is the conversion rate from millilambert to apostilb?
- The conversion rate is 1 millilambert (mL) equals 10 apostilb (asb).
- In which fields are millilambert and apostilb commonly used?
- They are mainly used in cinematography, broadcast engineering, imaging laboratories, and lighting design.
- Are millilambert and apostilb still standard units for luminance?
- No, both are non-SI historical units; modern measurement usually relies on candela per square metre.
Key Terminology
- Millilambert (mL)
- A non-SI luminance unit equal to one thousandth of a lambert, used to measure luminous intensity per unit area into a solid angle.
- Apostilb (asb)
- A historical non-SI luminance unit equal to 1/π candela per square metre, representing luminous intensity from a surface per unit projected area.
- Luminance
- The measure of luminous intensity emitted or reflected from a surface per unit area in a given direction.