The Anamorphic Aspect Ratio Calculator is a specialized tool used in film production to adjust the aspect ratio of footage captured with anamorphic lenses. Anamorphic lenses "squeeze" an image to fit into a standard aspect ratio frame, which must then be "desqueezed" or stretched back to its intended aspect ratio during post-production. This tool helps in determining both the effective aspect ratio after desqueezing and the necessary captured aspect ratio based on a target output.
Formula of Anamorphic Aspect Ratio Calculator
To utilize the Anamorphic Aspect Ratio Calculator effectively, one must understand two fundamental formulas:
- Finding the effective aspect ratio after "desqueezing":
This calculation is essential for understanding how your footage will look after it is stretched back to its intended aspect ratio.
Effective Aspect Ratio = Captured Aspect Ratio / Squeeze Factor
For instance, capturing footage in 16:9 with a 1.33x squeeze lens results in an effective aspect ratio of 12:9.
- Finding the captured aspect ratio based on a target aspect ratio:
This calculation is crucial when planning your shoot and determining what aspect ratio you need to capture at, considering the squeeze factor of your lens.
Captured Aspect Ratio = Target Aspect Ratio * Squeeze Factor
For example, to achieve a final aspect ratio of 2.35:1 with a 1.33x squeeze lens, you would need to capture at 3.13:1.
Table of Common Terms and Calculations
| Target Aspect Ratio | Squeeze Factor | Captured Aspect Ratio | Effective Aspect Ratio |
|---|---|---|---|
| 2.35:1 | 1.33x | 3.13:1 | 2.35:1 |
| 2.35:1 | 2x | 4.70:1 | 2.35:1 |
| 2.39:1 | 1.33x | 3.18:1 | 2.39:1 |
| 2.39:1 | 2x | 4.78:1 | 2.39:1 |
| 2.40:1 | 1.33x | 3.19:1 | 2.40:1 |
| 2.40:1 | 2x | 4.80:1 | 2.40:1 |
| 16:9 (1.78:1) | 1.33x | 2.37:1 | 1.78:1 |
| 16:9 (1.78:1) | 2x | 3.56:1 | 1.78:1 |
Example of Anamorphic Aspect Ratio Calculator
Consider you are aiming for a cinematic 2.35:1 aspect ratio using a 2x anamorphic lens. According to the formulas:
Captured Aspect Ratio = 2.35:1 * 2 = 4.7:1
Effective Aspect Ratio = 4.7:1 / 2 = 2.35:1
This example demonstrates how to calculate both the captured and effective aspect ratios to achieve your desired cinematic look.
Most Common FAQs
An anamorphic lens is a specialized lens that horizontally compresses the image captured by the camera sensor. This technique allows for a wider aspect ratio, characteristic of the cinematic look.
Using the calculator ensures accuracy in your aspect ratio calculations, helping you achieve the desired cinematic effect without trial and error.
Yes, this calculator is versatile and can be use with any camera or anamorphic lens combination, provided you know the squeeze factor of your lens.