# Camera Field of View (FoV) Guide

Published Nov 13, 2019 15:00 PM

Field of View (FoV) and Angle of View (AoV), are deceptively complex. At their most basic, they simply describe what the camera can "see" and seem self-explanatory. However, when analyzing images, comparing cameras or projecting quality, subtleties in these calculations can have a big impact.

In this tutorial, we examine:

• Specifying Field of View And Angle Of View
• Other Field of View Terms
• Calculating Field of View
• FoV Width vs. Coverage Area
• Measuring / Comparing FoV
• Field of View vs. Target Distance
• Field of View Requires Distance Notation
• Field of View vs. Lens Length
• Field of View vs. Imager Size

Specifying ***** ** ****- **** **. ***

***** *** *** ****** ***** **** to *********** ***** ** ****:

• **** (********** ***** ** ****): *** width ** *** ***** ** * specific *****, *.*. ***' **** ** 50' ********. **** ** ********** ****** referred ** ** ***.
• *** (***** ** ****): *** *****, measured ** *******, ** *** ******'* coverage ****.

***** ***** *** ***** **** ***************, but *********** ***** ** ********* ******.

Other ***** **** ******

***** *** *** ***** ***** ********* used ** ******** ****** ***/***:

• ******** ***** ** **** (****): ******** from *** "******" ** "***" ** the *****, **********.
• ******** ***: *** ***** ** **** measured **** ****** ** ****** ** a ******'* *****, *** ******** ****.

***** *** ***** *** ********* ****** in ****** *** **** **************, *** are *** *************** **** **** ** AoV.

Calculating ***** ** ****

*** ***** **** ** *********** * camera’s *** ** ******* (°). *** key ****** **** ** **** ******. The ****** *** ****, *** ******** the *** / **** *** ****** can ***. *** ********* *** *********** lens ****** *** *** ***** ** view **** ******.

*********** ****** *** ** ******** ***** the **** ****** **********. *** ********** allows ***** ** ****** ****** **** real ****** *** ****** *** *** AoV. *** *******, *** ********* ***** compares ***°, ***°, **°, *** **° angles ** ****, ******* *** ********** in *** ******'* ***** ** **** at **** *****.

*** ****, ****** *********** ** **** ********** ******** **** ** *****. **** you ********** **** ******, *** *** calculate ******** *** **** **********.

FoV ** **** *******

*** ** ********* ********* ** ***** the ********** ********* ****, *.*., *** HFoV ** ***' ** **'.

*******, ******* ** *** **** ****** the ***** **** ******** ** ** the ******. *** ********, *** *** HFoV ** ****, *** *** **** is ******* **. *********, ******** *** HFoV *** *** **** ********* ** 400%.

*****, ******* * ***° ** **° angle ** **** ** * ******* lot. ****** **** *** **** ******* by **:

Measuring / ********* ***

*** **** ****** *** ******* ** see ** ********* ******* **** ********* FoVs. **** ** *** ******* *** identical *** *** ******* ** *** same ******, *** ****** **** *** wider *** **** ****** "****" ***** than *** ***** ***. *** *******, the *** ******* ***** *** **** 1080p, *** *** ***** **** "*****" than *** *****, **** ****** ******* of *** *******:

*** ****** ***** *** ******* ****** so ********* ** **** **** **** vastly ********* ****** ** ****. ****** A *** * ****** ~**° ***, while ****** * **** * ***** ~98° ***, ******** * **** ******* area:

******* **** ************ ***** ********* ** differences **** ** ******* **** ***** ******* ****** ****** than ***********. *** *****, ****** **** simply **** *** ********* ******* ** two ********* ***** *** *** ****** that *** *** ** *** ******* are *** ****.

**** ******* ******* ** ******* ** vendor *************, ***** ** **** ****** be ************ ** ** *** **** least **** ** **** ** ** cannot ** *******.

Field ** **** **. ****** ********

*** ******* * ******* ** **** a ******, *** ***** *** ***** is ** **** *****. *** ***** of **** ** ********, *** *** width ** **** / ****** ********* as *** ***** ******* **** *** camera.

**** ** * ************ ***. *** can *** ** ********** ** *** image *****, ** *** ******* ***** further **** *** *******, *** *** width ******:

****'* ** ******** **** **** ************ the **** ********* / *****:

*** ***** ************ *** ************ ******* distance *** ***** ** **** ***** using ******* ****** **********:

FoV ***** ******** ******** ********

******* *** ******* ** ******** ******** or **** **** **** *******, ***** key ******* **** ** **********:

• ***** ** ** ****** *** *****. While ****** ***** ***** ****, ** is * ********* ********** ******* *** must **** ***** ** *** *** a ****** **. ****** ****** *** "FoV ***** ** *" ** **********.
• ** ****** *** *** *****, *** must **** *** *******'* ******** **** the ******. ** ******** ****** ****, say "*** *** ******** ** * **** *** ******."
• **** **** *** ********** *** ******** point **** **** *** ****** *** wants ** *******. ** **********, **** will ** *** ****** *** *** the **** ****** ** **** ******** delivering ********** *******. ** ********* ** the *** ** *** ****, ****** ** * *********.

Field ** **** ** **** ******

*** **** **** * ******* **** length ******** *** ***, ** **** accelerates *** **** *** *** ********* as *** *******’* ******** **** *** camera *********. ***’* ******* *** ******* examples, * *******/********* ****** *** * super ********* **** ** **** **** principle ** ******:

*** * *** / ******* ******, every * **** * ******* ** further **** *** ******, *** *** increases ~* **** (** *** *** is *** ********* ** * ******). In **** ** ****, *** *** is **** **** ** **** ****.

** ********, *** * ***** ********* lens, ***** * **** * ******* is ******* **** *** ******, *** FoV *** **** ******** *** **** or ******* ** * ****. ******* of ****, * ******* *** ** 10 **** ****** ******* **** **** a **** ******* *** **** * super ********* **** *** ****** ******* detail ********. **** ** ***** ******** of *** ******* / *** ******.

******* ** **** ****:

• ** **** ******* **** ******* ** super **** ***** ****** ** *** FoV **** ****** *******, ********* ******* details ****** ***** **** *****.
• ***** ***** ********* ****** ******* * FoV ***** **** ******* ******, ******* depth ** ***** (***) ******* * big ****. **** **** **** ***** deliver *** ********* **** *** ***** be *** ** *****. *** ******** ** ***** ******** *** *******.

Field ** **** ** ****** ****

****** **** **** ******* ***. *******, in ********, *** ************, **** ** typically *** * ***** ****** ** variances ***** ****** ***** **** ** be ******.

** ** ***** ***********, *** ****** the ******, *** ***** *** *** will **, ********** **** ***** *****. This ** ******* **** ** *************** ****** ****** *********** *** ** ************ **** ** our****** **********.

Test **** *********

******** * ******** *******!

SD
Shannon Davis
IPVMU Certified

***** ****** **** ****. *** **** is ***** **********. *** ***** *** the ****, ********* *** **** ****** for *** ********* *** ****, ****, you ***'* *** *** **** *** want ******* *** **** ****'* ****** and *** ****'* ***** **** **** of *** ****** *****. *** ** issue **** ** *** **** *** sometimes ** **, ********** ** *** camera ** ******* ** * ***** that ** ****** *****. **** ****** manufacturers **** **** ** ***** **** sheets *** **** ***'*.

(3)
(1)
RD
Rob Dunham
Tailored IT Solutions

* *** ** ****** ***'* ******** it **** ******** *** ******'* ************ height ******** ** *** ***** ******.

(1)
UM
Undisclosed Manufacturer #1

***** ******* *** * ****** ***** from *****, *** * ******** * bit **** **** **** ********* **** imager **** ** *** * ***** factor ** *********** ***"** ********* ***** ****** ***** **** to ** ******".***** ** ** **** **** *** variances *** ****** *** *** **** inconsequential, ** ****** ** ******* **** there ** ** ******.

**** *** ******* *** ****** ****** sizes ******** ** *******; *** */*.*" imager ***** ***** ** ***** ******* and *** */*.*" ****** ***** ***** in ** *******. ** ******, **** doesn't ***** *** ****** **** *** manufacturers, *** ***** *** ****** ******. The ***** ******* **** ********* ** mm ** ******* **** ***** **** inconsequential ** ***** ********** ** *** is *.**** *** *** ***** ** 10.16mm, ************, *** ***** *** * real ******.

* ****** ******* ** *** ************ in ****** *** ***** ** ***** a ****** ** ***** **, **'* fairly **************. *** = ****** **** divided ** ******* ******** ****** ********* by ********.

**, ** *** *** ********** ** capture * ****** ******* **** ** entry *** *** **** ** * foot ******** ****** *** *** ******** is ** **** ****, *** *********** looks **** ****...

1/2.8" ******

*.**** ******* ** ****** (* ****) multipled ** ****** (** ****) = 22.71mm ****

1/2.5" ******

**.**** ******* ** ****** (* ****) multipled ** ****** (** ****) = 25.45mm ****

*** ***** ******* *** ******** ** covered **** * ******** ***-**** ********* lens **** *** **** ** **** cameras ********. *** ****** *******, *******, cannot ** ******* ** * ***-**** lens ****** *** *** ******* ** sacrifice *** ** **** *** ****** closer ** *** ******. **** *** viable *******, *** * ********* ** being **** ********* *** **** "******" difference.

(1)
(1)
JH
John Honovich
IPVM

*** ***** ******* *** ******** ** covered **** * ******** ***-**** ********* lens **** *** **** ** **** cameras ********. *** ****** *******, *******, cannot ** ******* ** * ***-**** lens ****** *** *** ******* ** sacrifice *** ** **** *** ****** closer ** *** ******.

**** ******* ** **** *** ** edge ****. ** *** *** ****** it ***** ** ********** **** **** as *** ***** **, '"********* ***** imager ***** **** ** ** ******".

**, ** *** *** ********** ** capture * ****** ******* **** ** entry *** *** **** ** * foot ******** ****** *** *** ******** is ** **** ****, *** *********** looks **** ****...

** ****, *** *********** ****** ** done *** ********, ******* ** ***** **** ****** ************ ***** ****** ********. *** *******, that's *** ** **** **,***+ ****** models ** *** ********** ** *** don't **** ** *** *** ****** calculations, *** **** **** **** ***** and *** ** ** ****** ** on *** ***.

(1)
UM
Undisclosed Manufacturer #1

** *****. **** ****** **** ** definitely **** ************* *** ******* **** my ***** **** ** *** ****** sort ** ******. * **** **** the **** *** *** **** **** have ********* *** * ** **** it.

RD
Rob Dunham
Tailored IT Solutions

****. *** **** ********** *****'* **** indoors *** ****'* ***** **% ** my ******* *** *********. **'* ********** still ***** ******* *** ** ********* it ********. *******, **'** ******** ** be ******* *****? *** ***** *** find *** ** ******** ** ********* of ****** *** ***********. **'* ** to ** ************* ** **** ********** what ** ***** *** *** ** apply ** *********. **** ***** *** be ***** **********, *** ** ********* aren't ******* ** *** **** ***** they *** **** *** ************ ** hand *** *********** **** ******** ********** them.

(2)
(2)
JH
John Honovich
IPVM

*** **** ********** *****'* **** ******* and ****'* ***** **% ** ** cameras *** *********.

*** ********** ***** *******. ** *** don't **** *** *** ** ***, that's ****, ********** ***** ******. *** *** ****** ** ***** below:

*** ** *** **** ***** ******* and ******** ** * ***,*** * *********.

**'* ********** ***** ***** ******* *** to ********* ** ********.

******, **'* ***** ******* ****'* *** we ***** **** ** *** *****.

**** ***** *** ** ***** **********, but ** ********* ****'* ******* ** use **** ***** **** *** **** the ************ ** **** *** *********** they ******** ********** ****.

**, **** *** ** ***** ** very *********** ** ******** ********* ***** metrics **** ****. *** *** **** run *** **** ** ***** ***** since ***** ********* ** ********* *** abstractly ***** ** *** ***** ************ specifications.

U
Undisclosed #3
IPVMU Certified

1/2.8" ******

*.**** ******* ** ****** (* ****) multipled ** ****** (** ****) = 22.71mm ****

1/2.5" ******

**.**** ******* ** ****** (* ****) multipled ** ****** (** ****) = 25.45mm ****

***, *** ***’* **** ******* */*.*” to ** *** *** **** ** calculations. *** * ******* ** *******.

UI
Undisclosed Integrator #2

**** * ***'* *** ** *** lens *********** ** ** **** ** coverage. ** *** ****** ******** ** the **** ** *** ******** ** suppoed ** **** *** ******* ***, how **** ** *** ******* *** is ****** *** ***** ** ****? Vertical *** ********** ************ *** **** important.

**** ** **** ** ** ***** line *******. ******* - *** ****** is ******* ** **' *** *** ground, *** ****** ** *** ****** view ** **' **** *** ****, if *** ****** ** ** ******** mode, *** * **** ** ***, how *** *** **** *** ****** provide **** ********** ***** *** *********** lens, *** **** ******** ***** ** I ***** *** ****** ** ******* the ******* ****?

* **** *** ********** *** **** look ** *** **** *** ****** accordingly. *** * **** ** ** the ************ ***** ** **** ** make **** **** * **** *** proper ********** ****** *** **** **** to ******* *** ******** ***** ** view.

RD
Rob Dunham
Tailored IT Solutions

**** *********** *** *** *****? **'* in ***** *** *'** **** ****.

Sean Patton
IPVM

*** ****** ********** ****** ***** **** calculation, ***** ** ****** ****** (*** high *** *** ****** ** ** installed) *** ***** ****** (*** *** of *** ******'* ********** ***** ** view):

Enabling ***** ***** ** ***

***** ***** *** ********* *** *** can ** ******* ** *** *** cameras. *** ******* ****** ****** ** set ** ** **** ** ~* meters. ***** ****** (*** ** *** camera ***** ** ****) ** **** set ** ** **** ** *******.

U
Undisclosed #3
IPVMU Certified

**, *’* ********. ***’* *** **** angle *** ***** ******* *** ****** plane *** *** ******?

**** *** **** ** *, *** the ****** ***** ** ** ******** down:

Sean Patton
IPVM

*** ********** ******* **** ** *** top **** ** *** *** ******** to *** *******/********** **** ** *** height ** *** ******.

(1)
U
Undisclosed #3
IPVMU Certified

*** ********** ******* **** ** *** top **** ** *** *** ******** to *** *******/********** **** ** *** height ** *** ******.

**, *** ** * ********* ******, how ** *** ** *** **** information ** ***** ***** ******?

** *** ***** * *** ****** the ***** ** ***** *** ****** lies, *** ***** ** ***** ****** make ******* *********** **** *** *************, with *** ********** **** ***** ** 0 ****** ****.

*** **** *** **** *** **** to ***** *** ****** ***** **** tilt *****?

U
Undisclosed #3
IPVMU Certified

*** ********** ******* **** ** *** top **** ** *** *** ******** to *** *******/********** **** ** *** height ** *** ******.

*** ** ******* *** ***** ****, but **** ****** ** **********, *** you ****** **** **** *** ********** considers *** “**** *****” ** ********* than *** ******** ******* **********?

** ** *******, *** ****** *** dual ****** **** ****:

***** ** ****** ******* *** ******, the ****** *********** *******, *********** *** optimal ** ******** ****** ******* **** ~6° ** ~**°. ** ***** **** missed ***** ***** ******** ** ****** lit ******.

** *** * ****** ******** **** that ******* ********* **** *** ** plugged **** *** ********** ******** **?

U
Undisclosed #3
IPVMU Certified

**** (********** ***** ** ****): *** width ** *** ***** ** * specific *****, *.*. ***' **** ** 50' ********. **** ** ********** ****** referred ** ** ***.

*** (***** ** ****): *** *****, measured ** *******, ** *** ******'* coverage ****.

** ** *****, **** ** ***** refer ** ********** ************, *** *** that *** ********* ** ******** ****, and ***** ** * ******** *** diagonal *** ** **** **** **** in ****.

Chuck Vivian

** ** *** ****, *** ** critical. **** ******* ********** *** **** helpful.

(1)