Viewing Angles
FREE CALCULATOR
The Viewing Angle Calculator (VAC) makes it easy to calculate the perfect screen size, seating distance, and tier heights in your cinema regardless of the chosen screen aspect ratio.
Do you need to optimise the screen size for your seating distance, understand what aspect ratio will deliver the biggest screen size or ensure clear horizontal and vertical sight lines? The APC does it all.
This calculator is provided entirely free of charge, with no credit card required.
The calculator provides a PDF file upon completion.
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Instructions for Data Entry
In order to create the report, the Amplifier Power Calculator needs some information about the project. Cinema Tools does not store or record any data that is entered into this form.
Project Name:
Enter the project name so that the report can be easily identified.
Prepared By:
Enter the name of the person creating the report
Calculation Units:
Select the measurement units that will be used in the other form fields
Screen
Calculation Based On:
Specify if the screen size value is the Width, Height or Diagonal dimension.
Value:
Enter the size of the screen dimension using the units selected for this calculator.
Screen Aspect:
Enter the Aspect Ratio of the screen. For example, 2.37, 1.78 etc.
Height From Floor:
Enter the distance from floor level to the bottom of the visible area of the screen. All height fields should be completed with reference to the same starting level.
Seats
The calculator allows data for up to four rows to be entered. Where less than four rows are required, leave the unused fields blank and they will be ignored by the calculator.
The reference point for the viewing location should be the seated eye level.
Distance From Screen:
Enter the distance from the screen to the viewing location
Image Aspect:
This is a default value based on the native aspect of the selected projector model and can not be altered
Height From Floor:
Enter the distance from the floor to the viewing location. All height fields should be completed with reference to the same starting level.
Horizontal Angles
The Viewing Angles Horizontal Angles page of the report is used to show the horizontal viewing angle for the combination of screen size and seating distances specified.
Cinema Tools uses a proprietary algorithm which optimises the viewing angle to the screen sizes. This data is then presented in a number of different formats and for each specified row.
The calculator also delivers results for the minimum, recommend and maximum seating distances from the screen.
The right hand data bar details:
- Screen Width in mm and inches
- Screen Height in mm and inches
- Screen Diagonal in mm and inches
- Screen aspect ratio
- Heigth from Floor in mm and inches
- Minimum Distance from Screen in mm and inches
- Recommended Distance from Screen in mm and inches
- Maximum Distance from Screen in mm and inches
- Actual Distance from Screen in mm and inches per seating row
- Horizontal Viewing Angles in degrees
- Actual Distance from Screen in number of screen heights
Vertical Angles
The Beam Size Top View page of the report is used to show the width of the projected image beam at the requested measurement points.
The right hand data bar details:
- Screen Width in mm and inches
- Screen Height in mm and inches
- Screen Diagonal in mm and inches
- Screen Aspect Ratio
- Beam Height in mm and inches at Measuring Point in mm and inches