Suraj Kumar
Birsa Institute of Technology (BIT), Sindri
Suraj Kumar has created this Calculator and 400+ more calculators!
Alithea Fernandes
Don Bosco College of Engineering (DBCE), Goa
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3 Other formulas that you can solve using the same Inputs

Photo scale when focal length and heights are known
Photo scale=(Focal length of lens/(Flying height of airplane -Elevation of point)) GO
Flying height of airplane above datum
Flying height of airplane =((Focal length of lens/Photo scale)+Elevation of point) GO
Elevation of point, line, or area
Elevation of point=(Flying height of airplane -(Focal length of lens/Photo scale)) GO

Focal length of lens when photo scale and height are known Formula

Focal length of lens=(Photo scale*(Flying height of airplane -Elevation of point))
f=(P*(H-h<sub>1</sub>))
More formulas
Horizontal distance between center of transit and rod GO
Vertical distance between center of transit and rod intersected by middle horizontal crosshair GO
Additive constant or stadia constant GO
Stadia distance from instrument spindle to rod GO
Intercept on rod between two sighting wires GO
Photo scale when focal length and heights are known GO
Flying height of airplane above datum GO
Elevation of point, line, or area GO
Temperature Correction to Measured Length GO
Measured Length when Temperature Correction is Given GO
Correction to be Subtracted from Slope Distance GO
Measured Length when Correction to be Subtracted from Slope Distance is Given GO
Correction to be Subtracted from Slope Distance when Difference in Elevation is Given GO
Tension Correction to Measured Length GO
Measured Length when Tension Correction to Measured Length is Given GO
Tape Cross-Sectional Area when Tension Correction to Measured Length is Given GO
Actual Tension when Tension Correction to Measured Length is Given GO
Tape Standardized Tension when Tension Correction to Measured Length is Given GO
Tape Elasticity Modulus when Tension Correction to Measured Length is Given GO
Sag Correction of Unsupported Tape GO
Tape Weight when Sag Correction of Unsupported Tape is Given GO
Unsupported Length when Sag Correction of Unsupported Tape is Given GO
Actual Tension when Sag Correction of Unsupported Tape is Given GO
Relative Accuracy for First Order Class I GO
Relative Accuracy for First Order Class II GO
Relative Accuracy for Second Order Class I GO
Relative Accuracy for Second Order Class II GO
Relative Accuracy for Third Order GO
Probable Error of Mean GO
Mean Error when Sum of Errors is Given GO
Mean Error when Specified Error of a Single Measurement is Given GO

What is focal length ?

In actuality, there are two focal points for every lens, the same distance from the lens, on opposite sides. The distance from the lens to the focal point is called the focal length. For converging lenses, the focal length is always positive, while diverging lenses always have negative focal lengths.

How to Calculate Focal length of lens when photo scale and height are known?

Focal length of lens when photo scale and height are known calculator uses Focal length of lens=(Photo scale*(Flying height of airplane -Elevation of point)) to calculate the Focal length of lens, The Focal length of lens when photo scale and height are known formula is defined as the distance from the center of the lens to the principal foci (or focal points) of the lens. Focal length of lens and is denoted by f symbol.

How to calculate Focal length of lens when photo scale and height are known using this online calculator? To use this online calculator for Focal length of lens when photo scale and height are known, enter Photo scale (P), Flying height of airplane (H) and Elevation of point (h1) and hit the calculate button. Here is how the Focal length of lens when photo scale and height are known calculation can be explained with given input values -> 40 = (2*(30-10)).

FAQ

What is Focal length of lens when photo scale and height are known?
The Focal length of lens when photo scale and height are known formula is defined as the distance from the center of the lens to the principal foci (or focal points) of the lens and is represented as f=(P*(H-h1)) or Focal length of lens=(Photo scale*(Flying height of airplane -Elevation of point)). Photo scale is determined by the focal length of the camera and the flying height above the ground, Flying height of airplane above datum (usually mean sea level) and Elevation of point, line, or area with respect to datum.
How to calculate Focal length of lens when photo scale and height are known?
The Focal length of lens when photo scale and height are known formula is defined as the distance from the center of the lens to the principal foci (or focal points) of the lens is calculated using Focal length of lens=(Photo scale*(Flying height of airplane -Elevation of point)). To calculate Focal length of lens when photo scale and height are known, you need Photo scale (P), Flying height of airplane (H) and Elevation of point (h1). With our tool, you need to enter the respective value for Photo scale, Flying height of airplane and Elevation of point and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
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