1. What is the Vertical FOV to Horizontal FOV Conversion?

The Vertical FOV to Horizontal FOV conversion calculates the horizontal field of view based on the vertical field of view and the aspect ratio of the display or viewing area. This is particularly useful in photography, videography, and display technology.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( HFOV \) — Horizontal Field of View (degrees)
• \( VFOV \) — Vertical Field of View (degrees)
• \( aspect\_ratio \) — Aspect Ratio (unitless)

Explanation: The formula converts vertical field of view to horizontal field of view by multiplying with the aspect ratio of the display or viewing area.

3. Importance of FOV Conversion

Details: Accurate FOV conversion is crucial for setting up cameras, displays, and virtual reality systems to ensure proper viewing angles and immersive experiences.

4. Using the Calculator

Tips: Enter vertical FOV in degrees and the aspect ratio (e.g., 16:9 = 1.7778, 4:3 = 1.3333). All values must be valid (VFOV > 0, aspect_ratio > 0).

5. Frequently Asked Questions (FAQ)

Q1: What is aspect ratio?
A: Aspect ratio is the proportional relationship between the width and height of a display or image (e.g., 16:9, 4:3).

Q2: Why convert VFOV to HFOV?
A: Conversion helps in understanding the complete field of view coverage, especially when specifications only provide vertical measurements.

Q3: Can this be used for all display types?
A: Yes, the formula applies to any rectangular display regardless of size, as long as the aspect ratio is known.

Q4: What are typical aspect ratio values?
A: Common values include 1.3333 (4:3), 1.7778 (16:9), 1.8962 (19:10), and 2.3333 (21:9).

Q5: Is the conversion accurate for all viewing distances?
A: The conversion is mathematically accurate for the given aspect ratio, but actual perceived FOV may vary with viewing distance and display curvature.