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Photo Scale given Focal Length Formula

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Photo scale is determined by the focal length of the camera and the flying height above the ground. Check FAQs

P = (\frac{f len}{H - h 1})

P - Photo Scale?f_len - Focal Length of Lens?H - Flying Height of Airplane?h₁ - Elevation of Point?

Photo Scale given Focal Length Example

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Here is how the Photo Scale given Focal Length equation looks like with Values.

Here is how the Photo Scale given Focal Length equation looks like with Units.

Here is how the Photo Scale given Focal Length equation looks like.

2.1 = (\frac{4.2}{11 - 9})

2.1 = (\frac{4.2m}{11m - 9m})

2.1 = (\frac{4.2}{11 - 9})

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Photo Scale given Focal Length Solution

Follow our step by step solution on how to calculate Photo Scale given Focal Length?

FIRST Step Consider the formula

P = (\frac{f len}{H - h 1})

Next Step Substitute values of Variables

∴

P = (\frac{4.2m}{11m - 9m})

Next Step Prepare to Evaluate

∴

P = (\frac{4.2}{11 - 9})

LAST Step Evaluate

∴

P = 2.1

Photo Scale given Focal Length Formula Elements

Variables

Photo Scale

Photo scale is determined by the focal length of the camera and the flying height above the ground.

Symbol: P

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Photo Scale

Focal Length of Lens

Focal Length of Lens is usually represented in millimeters (mm), is the basic description of a photographic lens.

Symbol: f_len

Measurement: LengthUnit: m

Note: Value should be greater than 0.

Formulas to find Focal Length of Lens

Flying Height of Airplane

Flying height of airplane above datum (usually mean sea level) is defined as the average flying height above ground.

Symbol: H

Measurement: LengthUnit: m

Note: Value should be greater than 0.

Formulas to find Flying Height of Airplane

Elevation of Point

Elevation of point, line, or area with respect to datum.

Symbol: h₁

Measurement: LengthUnit: m

Note: Value should be greater than 0.

Formulas to find Elevation of Point

Other formulas in Photogrammetry category

Go Focal Length of Lens given Photo Scale

f len = (P \cdot (H - h 1))

Go Flying Height of Airplane above Datum

H = ((\frac{f len}{P}) + h 1)

Go Elevation of Point, Line or Area

h 1 = (H - (\frac{f len}{P}))

How to Evaluate Photo Scale given Focal Length?

Photo Scale given Focal Length evaluator uses Photo Scale = (Focal Length of Lens/(Flying Height of Airplane-Elevation of Point)) to evaluate the Photo Scale, The Photo scale given Focal Length formula is defined as the focal length of the camera and the flying height above the ground. Photo Scale is denoted by P symbol.

How to evaluate Photo Scale given Focal Length using this online evaluator? To use this online evaluator for Photo Scale given Focal Length, enter Focal Length of Lens (f_len), Flying Height of Airplane (H) & Elevation of Point (h₁) and hit the calculate button.

FAQs on Photo Scale given Focal Length

What is the formula to find Photo Scale given Focal Length?

The formula of Photo Scale given Focal Length is expressed as Photo Scale = (Focal Length of Lens/(Flying Height of Airplane-Elevation of Point)). Here is an example- 2.1 = (4.2/(11-9)).

How to calculate Photo Scale given Focal Length?

With Focal Length of Lens (f_len), Flying Height of Airplane (H) & Elevation of Point (h₁) we can find Photo Scale given Focal Length using the formula - Photo Scale = (Focal Length of Lens/(Flying Height of Airplane-Elevation of Point)).

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Photo Scale given Focal Length Formula

Photo Scale given Focal Length Example

Photo Scale given Focal Length Solution

Photo Scale given Focal Length Formula Elements

Other formulas in Photogrammetry category

How to Evaluate Photo Scale given Focal Length?

FAQs on Photo Scale given Focal Length

Variable Name