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You can get the angle of view with the Blam add-on

You can get them both (sensor size and focal length) at one time, but only the common factor of the equation.

With the mentioned add-on, that you can freely download, you are able to match the camera look starting from a bunch of grease pencil layers. If your photo has three vanishing points as the one below, you should provide three different layers, one per axis.

Enter image description here

After that you can start the camera calibration with the button on the left, and you'll get the focal length value automatically applied to the active camera.

Enter image description here

You can see from this quick modeling that the geometry is following the correct perspective deformation.

Enter image description here

And even the length of the edges results in more or less the same as you expect from a cube.

Enter image description here

Now comes the hardest part, as there is no uniform relation between the focal length of a lens and the angle of view, since the size of the camera sensor also determines the angle of view.

So in order to get the right value showed in the Exif data of the camera's focal length you must at least know the size of its sensor... (I may be wrong; there are a lots of things to consider. I hope someone who has more knowledge can help here. A related question is http://photo.stackexchange.com/questions/21616/how-can-i-calculate-focal-length-from-a-photographhttps://photo.stackexchange.com/questions/21616/how-can-i-calculate-focal-length-from-a-photograph).

Here's the scene after feeding the fields with the camera's real sensor size and focal length: the camera has to be slightly moved away from the subject to match the previous result.

Enter image description here

Sorry, the properties panel is in my own language, anyway it's saying:

  • Camera Model NIKON D32000
  • Focal length = 38 mm
  • Focal length 35 mm = 57 mm
  • ....

Image credits to Miguel Á. Padriñán, you can download it here.

You can get the angle of view with the Blam add-on

You can get them both (sensor size and focal length) at one time, but only the common factor of the equation.

With the mentioned add-on, that you can freely download, you are able to match the camera look starting from a bunch of grease pencil layers. If your photo has three vanishing points as the one below, you should provide three different layers, one per axis.

Enter image description here

After that you can start the camera calibration with the button on the left, and you'll get the focal length value automatically applied to the active camera.

Enter image description here

You can see from this quick modeling that the geometry is following the correct perspective deformation.

Enter image description here

And even the length of the edges results in more or less the same as you expect from a cube.

Enter image description here

Now comes the hardest part, as there is no uniform relation between the focal length of a lens and the angle of view, since the size of the camera sensor also determines the angle of view.

So in order to get the right value showed in the Exif data of the camera's focal length you must at least know the size of its sensor... (I may be wrong; there are a lots of things to consider. I hope someone who has more knowledge can help here. A related question is http://photo.stackexchange.com/questions/21616/how-can-i-calculate-focal-length-from-a-photograph).

Here's the scene after feeding the fields with the camera's real sensor size and focal length: the camera has to be slightly moved away from the subject to match the previous result.

Enter image description here

Sorry, the properties panel is in my own language, anyway it's saying:

  • Camera Model NIKON D32000
  • Focal length = 38 mm
  • Focal length 35 mm = 57 mm
  • ....

Image credits to Miguel Á. Padriñán, you can download it here.

You can get the angle of view with the Blam add-on

You can get them both (sensor size and focal length) at one time, but only the common factor of the equation.

With the mentioned add-on, that you can freely download, you are able to match the camera look starting from a bunch of grease pencil layers. If your photo has three vanishing points as the one below, you should provide three different layers, one per axis.

Enter image description here

After that you can start the camera calibration with the button on the left, and you'll get the focal length value automatically applied to the active camera.

Enter image description here

You can see from this quick modeling that the geometry is following the correct perspective deformation.

Enter image description here

And even the length of the edges results in more or less the same as you expect from a cube.

Enter image description here

Now comes the hardest part, as there is no uniform relation between the focal length of a lens and the angle of view, since the size of the camera sensor also determines the angle of view.

So in order to get the right value showed in the Exif data of the camera's focal length you must at least know the size of its sensor... (I may be wrong; there are a lots of things to consider. I hope someone who has more knowledge can help here. A related question is https://photo.stackexchange.com/questions/21616/how-can-i-calculate-focal-length-from-a-photograph).

Here's the scene after feeding the fields with the camera's real sensor size and focal length: the camera has to be slightly moved away from the subject to match the previous result.

Enter image description here

Sorry, the properties panel is in my own language, anyway it's saying:

  • Camera Model NIKON D32000
  • Focal length = 38 mm
  • Focal length 35 mm = 57 mm
  • ....

Image credits to Miguel Á. Padriñán, you can download it here.

Copy edited (e.g. ref. <https://en.wiktionary.org/wiki/focal_length>). (its = possessive, it's = "it is" or "it has". See for example <http://www.wikihow.com/Use-Its-and-It%27s>.)
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You can get the Angleangle of view with the Blam add-on

You can get them both (sensor size and focal lenghtlength) at one time, but only the common factor of the equation.

With the mentined addthe mentioned add-on, that you can freely download is, you are able to match the camera look starting from a bunch of grease pencil layers. If your photo has 3three vanishing points as the one below, you should provide 3three different layers, one per axis.

enter image description hereEnter image description here

After that you can start the camera calibration with the button on the left, and you'll get the focal lenghtlength value automatically applied to the active camera.

enter image description hereEnter image description here

You can see from this quick modeling that the geometry is following the correct perspective deformation.

enter image description hereEnter image description here

And even the lenghtlength of the edges resultresults in more or less the same as you expect from a cube.

enter image description hereEnter image description here

Now it camescomes the hardest part, as there is no uniform relation between the focal length of a lens and the angle of view, since the size of the camera sensor also determines the angle of view.

So in order to get the right value showed in the exifExif data of the camera's focal lenghtlength you must at least know the size of it'sits sensor... (I may be wrong,wrong; there are a lots of things to consider. I hope somehonesomeone who has more knowlodgeknowledge can help here. Here's a link toA related question: is http://photo.stackexchange.com/questions/21616/how-can-i-calculate-focal-length-from-a-photograph)http://photo.stackexchange.com/questions/21616/how-can-i-calculate-focal-length-from-a-photograph).

Here's the scene after feeding the fields with the camera's real sensor size and focal lenghtlength: the camera has to be slightelyslightly moved away from the subject to match the prevousprevious result.

enter image description hereEnter image description here

Sorry, the properties panel is in my own language, anyway it's saying:

  • Camera Model NIKON D32000
  • Focal lenghtlength = 38mm38 mm
  • Focal lenght 35mmlength 35 mm = 57mm57 mm
  • ....

Image credits to Miguel Á. Padriñán, you can downloddownload it here.

You can get the Angle of view with Blam add-on

You can get them both (sensor size and focal lenght) at one time, but only the common factor of the equation.

With the mentined add-on you can freely download is able to match the camera look starting from a bunch of grease pencil layers. If your photo has 3 vanishing points as the one below, you should provide 3 different layers, one per axis.

enter image description here

After that you can start the camera calibration with the button on the left and you'll get the focal lenght value automatically applied to the active camera.

enter image description here

You can see from this quick modeling that the geometry is following the correct perspective deformation.

enter image description here

And even the lenght of the edges result more or less the same as you expect from a cube.

enter image description here

Now it cames the hardest part, as there is no uniform relation between the focal length of a lens and the angle of view, since the size of the camera sensor also determines angle of view.

So in order to get the right value showed in the exif data of the camera's focal lenght you must at least know the size of it's sensor... (I may be wrong, there are a lots of things to consider. I hope somehone who has more knowlodge can help here. Here's a link to related question: http://photo.stackexchange.com/questions/21616/how-can-i-calculate-focal-length-from-a-photograph).

Here's the scene after feeding the fields with the camera's real sensor size and focal lenght: the camera has to be slightely moved away from the subject to match the prevous result.

enter image description here

Sorry, the properties panel is in my own language, anyway it's saying:

  • Camera Model NIKON D32000
  • Focal lenght = 38mm
  • Focal lenght 35mm = 57mm
  • ....

Image credits to Miguel Á. Padriñán, you can downlod it here.

You can get the angle of view with the Blam add-on

You can get them both (sensor size and focal length) at one time, but only the common factor of the equation.

With the mentioned add-on, that you can freely download, you are able to match the camera look starting from a bunch of grease pencil layers. If your photo has three vanishing points as the one below, you should provide three different layers, one per axis.

Enter image description here

After that you can start the camera calibration with the button on the left, and you'll get the focal length value automatically applied to the active camera.

Enter image description here

You can see from this quick modeling that the geometry is following the correct perspective deformation.

Enter image description here

And even the length of the edges results in more or less the same as you expect from a cube.

Enter image description here

Now comes the hardest part, as there is no uniform relation between the focal length of a lens and the angle of view, since the size of the camera sensor also determines the angle of view.

So in order to get the right value showed in the Exif data of the camera's focal length you must at least know the size of its sensor... (I may be wrong; there are a lots of things to consider. I hope someone who has more knowledge can help here. A related question is http://photo.stackexchange.com/questions/21616/how-can-i-calculate-focal-length-from-a-photograph).

Here's the scene after feeding the fields with the camera's real sensor size and focal length: the camera has to be slightly moved away from the subject to match the previous result.

Enter image description here

Sorry, the properties panel is in my own language, anyway it's saying:

  • Camera Model NIKON D32000
  • Focal length = 38 mm
  • Focal length 35 mm = 57 mm
  • ....

Image credits to Miguel Á. Padriñán, you can download it here.

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You can matchget the perspectiveAngle of view with Blam add-on

I don't think youYou can get them both (sensor size and focal lenght) at one time, but only the common factor of the equation.

ThisWith the mentined add-on you can freely download is able to match the camera look starting from a bunch of grease pencil layers. If your photo has 3 vanishing points as the one below, you should provide 3 different layers, one per axis.

enter image description here

After that you can start the camera calibration with the button on the left and you'll get the focal lenght value automatically applied to the active camera.

enter image description here

You can see from this quick modeling that the geometry is following the correct perspective deformation.

enter image description here

And even the lenght of the edges result more or less the same as you expect from a cube.

enter image description here

Now it cames the hardest part, as there is no uniform relation between the focal length of a lens and the angle of view, since the size of the camera sensor also determines angle of view.

So in order to get the right value showed in the exif data of the camera's focal lenght you must at least know the size of it's sensor... I think (but II may be wrong, there are a lots of things to consider. I hope somehone who has more knowlodge can help here. Here's a link to related question: http://photo.stackexchange.com/questions/21616/how-can-i-calculate-focal-length-from-a-photograph).

Here's the scene after feeding the fields with the camera's real sensor size and focal lenght: the camera has to be slightely moved away from the subject to match the prevous result.

enter image description here

Sorry, the properties panel is in my own language, anyway it's saying:

  • Camera Model NIKON D32000
  • Focal lenght = 38mm
  • Focal lenght 35mm = 57mm
  • ....

Image credits to Miguel Á. Padriñán, you can downlod it here.

You can match the perspective with Blam add-on

I don't think you can get them both (sensor size and focal lenght) at one time.

This add-on you can freely download is able to match the camera look starting from a bunch of grease pencil layers. If your photo has 3 vanishing points as the one below, you should provide 3 different layers.

enter image description here

After that you can start the camera calibration with the button on the left and you'll get the focal lenght value automatically applied to the active camera.

enter image description here

You can see from this quick modeling that the geometry is following the correct perspective deformation.

enter image description here

And even the lenght of the edges result more or less the same as you expect from a cube.

enter image description here

Now it cames the hardest part, as there is no uniform relation between the focal length of a lens and the angle of view, since the size of the camera sensor also determines angle of view.

So in order to get the right value showed in the exif data of the camera's focal lenght you must at least know the size of it's sensor... I think (but I may be wrong, there are a lots of things to consider. I hope somehone who has more knowlodge can help here. Here's a link to related question: http://photo.stackexchange.com/questions/21616/how-can-i-calculate-focal-length-from-a-photograph).

Here's the scene after feeding the fields with the camera's real sensor size and focal lenght: the camera has to be slightely moved away from the subject to match the prevous result.

enter image description here

Sorry, the properties panel is in my own language, anyway it's saying:

  • Camera Model NIKON D32000
  • Focal lenght = 38mm
  • Focal lenght 35mm = 57mm
  • ....

Image credits to Miguel Á. Padriñán, you can downlod it here.

You can get the Angle of view with Blam add-on

You can get them both (sensor size and focal lenght) at one time, but only the common factor of the equation.

With the mentined add-on you can freely download is able to match the camera look starting from a bunch of grease pencil layers. If your photo has 3 vanishing points as the one below, you should provide 3 different layers, one per axis.

enter image description here

After that you can start the camera calibration with the button on the left and you'll get the focal lenght value automatically applied to the active camera.

enter image description here

You can see from this quick modeling that the geometry is following the correct perspective deformation.

enter image description here

And even the lenght of the edges result more or less the same as you expect from a cube.

enter image description here

Now it cames the hardest part, as there is no uniform relation between the focal length of a lens and the angle of view, since the size of the camera sensor also determines angle of view.

So in order to get the right value showed in the exif data of the camera's focal lenght you must at least know the size of it's sensor... (I may be wrong, there are a lots of things to consider. I hope somehone who has more knowlodge can help here. Here's a link to related question: http://photo.stackexchange.com/questions/21616/how-can-i-calculate-focal-length-from-a-photograph).

Here's the scene after feeding the fields with the camera's real sensor size and focal lenght: the camera has to be slightely moved away from the subject to match the prevous result.

enter image description here

Sorry, the properties panel is in my own language, anyway it's saying:

  • Camera Model NIKON D32000
  • Focal lenght = 38mm
  • Focal lenght 35mm = 57mm
  • ....

Image credits to Miguel Á. Padriñán, you can downlod it here.

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