1. What is Megapixel Conversion?

Megapixel conversion calculates the resolution in megapixels from physical dimensions and pixel density. It's essential for understanding the resolution capability of imaging sensors or displays based on their physical size and pixel pitch.

2. How Does the Calculator Work?

The calculator uses the megapixel formula:

Where:

• \( Width_{mm} \) — Physical width in millimeters
• \( Height_{mm} \) — Physical height in millimeters
• \( Resolution_{mm/px} \) — Pixel pitch (distance between pixel centers in mm)

Explanation: The formula first converts physical dimensions to pixel dimensions, then calculates total pixels and converts to megapixels (1 megapixel = 1,000,000 pixels).

3. Importance of Megapixel Calculation

Details: Understanding megapixel conversion helps in comparing imaging systems, designing sensors, and determining resolution requirements for specific applications.

4. Using the Calculator

Tips: Enter physical dimensions in millimeters and resolution in mm per pixel. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What is a typical resolution for camera sensors?
A: Common resolutions range from 0.1 mm/px (coarse) to 0.001 mm/px (very fine) depending on application.

Q2: How does this relate to DPI/PPI?
A: DPI (dots per inch) can be converted to mm/px by dividing 25.4 mm/inch by the DPI value.

Q3: What's the difference between megapixels and resolution?
A: Megapixels measure total pixel count, while resolution refers to pixel density (pixels per unit length).

Q4: Does higher megapixel always mean better quality?
A: Not necessarily - pixel size, sensor quality, and optics also significantly impact image quality.

Q5: How do I find the mm/px value for my sensor?
A: Check manufacturer specifications or divide sensor width in mm by its pixel width in pixels.