Optical Calculator for Focal Length, Magnification, and FOV

This optical calculator provides a fast and precise way to determine key parameters for machine vision applications. It assists in the technical specification of camera and lens systems, ensuring that focal length, magnification, and field of view are perfectly matched to your requirements.

The calculator enables the rapid evaluation of various system configurations. By combining sensor dimensions, object sizes, and working distances, you can simulate different scenarios and compare them instantly. This allows for informed design decisions in the early project stages and helps prevent common specification errors.

Perform Optical Calculations

Sensor:

Custom sensor width (mm):

Custom sensor height (mm):

Working distance / Focal length (mm):

Object width (mm):

Object height (mm):

Magnification (β):

Optical Parameters

Magnification (β): -

Focal length: -

Image circle: -

Working distance (lens front to object): -

Object-to-image distance (object to sensor): -

Field of View (FOV)

Field of view (width x height): -

Angle of view (horizontal): -

Angle of view (vertical): -

Calculate Depth of Field

To calculate the depth of field, the upper fields must be filled out first.

Aperture (F):

Hyperfocal distance: -

Near point: -

Far point: -

Depth of field (DoF): -

Schematic Drawing

Object height:
- mm Object width:
- mm Working distance:
- mm Sensor height:
- mm Sensor width:
- mm Object-to-sensor distance:
- mm

Calculate Focal Length and Determine Working Distance

The calculator computes the optimal focal length based on your target working distance, or vice-versa. This allows you to identify the suitable lens for your application early on—especially critical in machine vision where mounting space and clearance are often restricted.

Determine Magnification and Scaling

Beyond focal length, the tool calculates the magnification factor, defining the ratio between the object size and the image on the sensor. Alternatively, you can derive the magnification directly from sensor and object dimensions to quickly visualize how an object will be mapped onto the sensor.

Analyze Field of View (FOV) and Angle of View

Based on your input parameters, the calculator determines the resulting Field of View. Additionally, it provides the horizontal and vertical angles of view. These values are essential to ensure that the entire target area is captured within the sensor's active surface.

Understand Image Circle and Total System Length

The calculator provides the required image circle and the total distance from the object to the sensor. These figures are vital for selecting compatible lenses and ensuring proper mechanical integration within your system housing.

Flexible Support for Various Sensor Formats

The tool supports a wide range of standard sensor formats as well as custom sensor dimensions. This makes it an adaptable utility for diverse applications, ranging from standard area scan sensors to high-resolution line scan sensors.

Contact us

Please do not hesitate to contact us if you have any questions. Our dedicated team is here to help you every step of the way. Whether you need assistance with product selection, technical specifications, or general inquiries.

Jos. Schneider Optische Werke GmbH
Ringstraße 132
55543 Bad Kreuznach | Germany

Tel: +49 (0) 671 601 205
isales(at)schneiderkreuznach.com
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