FoV vs AoV
Posted 25/01/2010 - 23:50
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Is there one? I just thought that was two ways of referring to the same thing?
Joining the Q
Posted 25/01/2010 - 23:54
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Sometimes it seems that way but, I thought that FOV is truly a field in what you see in photogrphic terms so you need to have a distance and dimensions to get it.
Also with lenses AOV is always use, i've never seen FOV there.. well on forums but if you look up official specs it's always AOV.
Also with lenses AOV is always use, i've never seen FOV there.. well on forums but if you look up official specs it's always AOV.
Stefan
K10D, K5
DA* 16-50, DA* 50-135, D-FA 100 Macro, DA 40 Ltd, DA 18-55
AF-540FGZ
K10D, K5
DA* 16-50, DA* 50-135, D-FA 100 Macro, DA 40 Ltd, DA 18-55
AF-540FGZ
Posted 25/01/2010 - 23:56
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Possibly strictly speaking 'Field of View' would be expressed as a distance measurement, binoculars often use this and it's described as, for example, 106ft at 1000ft (you can see 106ft across your field of view at a distance of 1000ft), whereas 'Angle of View' is the, er, angle of view...
But they're describing the same thing (assuming the above is correct), just in a different way.
Dan
But they're describing the same thing (assuming the above is correct), just in a different way.
Dan
K-3, a macro lens and a DA*300mm...
Posted 25/01/2010 - 23:58
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I just looked in Hedgecoe's "The Photographer's Handbook" (again!) and there's no mention of FOV in the index, several pages on AOV though.
I still think they're the same thing
I still think they're the same thing
Joining the Q
Posted 26/01/2010 - 00:03
Link
Yes Dan something like that
Here we go, I've been learned this.
Looks different then angle of view right?http://www.jmckell.com/3Dcamera.html
And this is Angle of View if I'm correct.
Here we go, I've been learned this.
Looks different then angle of view right?http://www.jmckell.com/3Dcamera.html
And this is Angle of View if I'm correct.
Stefan
K10D, K5
DA* 16-50, DA* 50-135, D-FA 100 Macro, DA 40 Ltd, DA 18-55
AF-540FGZ
K10D, K5
DA* 16-50, DA* 50-135, D-FA 100 Macro, DA 40 Ltd, DA 18-55
AF-540FGZ
Posted 26/01/2010 - 00:13
Link
I don't think this is saying the same thing, link, but I could be very wrong.
Barrie - Too Old To Die Young
https://pentaxphotogallery.com/artists/barrieforbes
https://www.flickr.com/photos/189482630@N03/
https://pentaxphotogallery.com/artists/barrieforbes
https://www.flickr.com/photos/189482630@N03/
Posted 26/01/2010 - 00:18
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Anvh wrote:
Looks different then angle of view right?
If it is always referring to the vertical field of view, then yes, that would be different to the photographic AoV, however, the term might have a specific meaning within that software, so may not always refer to the vertical. It would certainly make more sense to talk about horizontal fields of view in most instances, as far as I can see.Looks different then angle of view right?
Dan
K-3, a macro lens and a DA*300mm...
Posted 26/01/2010 - 00:23
Link
Indeed Hefty
So if I'm correct then you can get the same field of view with the same lens on APS-C or on FF if both aspect ratios are the same right?
Let's see...
A 50mm lens
APS-C sensor with 1.5x crop and 3:2 ratio at a distance of 12 meter gives me 692.27cm diagonal FOV
FF 3:2 ratio at a distance of 8 meter = 692.27cm diagonal FOV
... so the fight between K10D and Iceblinker was not correct
... right?
So if I'm correct then you can get the same field of view with the same lens on APS-C or on FF if both aspect ratios are the same right?
Let's see...
A 50mm lens
APS-C sensor with 1.5x crop and 3:2 ratio at a distance of 12 meter gives me 692.27cm diagonal FOV
FF 3:2 ratio at a distance of 8 meter = 692.27cm diagonal FOV
... so the fight between K10D and Iceblinker was not correct
... right?
Stefan
K10D, K5
DA* 16-50, DA* 50-135, D-FA 100 Macro, DA 40 Ltd, DA 18-55
AF-540FGZ
K10D, K5
DA* 16-50, DA* 50-135, D-FA 100 Macro, DA 40 Ltd, DA 18-55
AF-540FGZ
Posted 26/01/2010 - 00:24
Link
Daniel Bridge wrote:
If it is always referring to the vertical field of view, then yes, that would be different to the photographic AoV, however, the term might have a specific meaning within that software, so may not always refer to the vertical. It would certainly make more sense to talk about horizontal fields of view in most instances, as far as I can see.
Dan
Dan, I've used diagonal just for you in the comment above
If it is always referring to the vertical field of view, then yes, that would be different to the photographic AoV, however, the term might have a specific meaning within that software, so may not always refer to the vertical. It would certainly make more sense to talk about horizontal fields of view in most instances, as far as I can see.
Dan
Stefan
K10D, K5
DA* 16-50, DA* 50-135, D-FA 100 Macro, DA 40 Ltd, DA 18-55
AF-540FGZ
K10D, K5
DA* 16-50, DA* 50-135, D-FA 100 Macro, DA 40 Ltd, DA 18-55
AF-540FGZ
Posted 26/01/2010 - 00:47
Link
Best site yet
http://www.answers.com/topic/angle-of-view-1
http://www.mhohner.de/formulas.php#fov
This correct right, before I get it all wrong again...
http://www.answers.com/topic/angle-of-view-1
http://www.mhohner.de/formulas.php#fov
This correct right, before I get it all wrong again...
Stefan
K10D, K5
DA* 16-50, DA* 50-135, D-FA 100 Macro, DA 40 Ltd, DA 18-55
AF-540FGZ
K10D, K5
DA* 16-50, DA* 50-135, D-FA 100 Macro, DA 40 Ltd, DA 18-55
AF-540FGZ
Posted 26/01/2010 - 01:18
Link
"In photography, the field of view is that part of the world that is visible through the camera at a particular position and orientation in space; objects outside the FOV when the picture is taken are not recorded in the photograph".
"Although related, FOV is not exactly the same as angle of view; FOV is measured in linear, spatial dimensions (feet, inches, metres, etc) whereas AOV (more properly called the angular field of view) is measured in degrees of arc. FOV increases with distance, whereas AOV does not. FOV changes as the camera rotates, AOV does not. Thus, while AOV is used for lens design specification, FOV is more useful to the photographer "in the field"."
- http://en.wikipedia.org/wiki/Field_of_view
"Although related, FOV is not exactly the same as angle of view; FOV is measured in linear, spatial dimensions (feet, inches, metres, etc) whereas AOV (more properly called the angular field of view) is measured in degrees of arc. FOV increases with distance, whereas AOV does not. FOV changes as the camera rotates, AOV does not. Thus, while AOV is used for lens design specification, FOV is more useful to the photographer "in the field"."
- http://en.wikipedia.org/wiki/Field_of_view
~Pete
Posted 26/01/2010 - 01:49
Link
Anvh wrote:
So if I'm correct then you can get the same field of view with the same lens on APS-C or on FF if both aspect ratios are the same right?
Only when the distance from the subject is different...So if I'm correct then you can get the same field of view with the same lens on APS-C or on FF if both aspect ratios are the same right?
Quote:
Let's see...
A 50mm lens
APS-C sensor with 1.5x crop and 3:2 ratio at a distance of 12 meter gives me 692.27cm diagonal FOV
FF 3:2 ratio at a distance of 8 meter = 692.27cm diagonal FOV
Of course you can get the same FOV on FF with the same lens by moving closer to the subject, but that's not what we were talking about in the discussion on FF. We were talking about the difference between sensor formats when all else is equal.Let's see...
A 50mm lens
APS-C sensor with 1.5x crop and 3:2 ratio at a distance of 12 meter gives me 692.27cm diagonal FOV
FF 3:2 ratio at a distance of 8 meter = 692.27cm diagonal FOV
So your point is correct but irrelevant.
~Pete
Posted 26/01/2010 - 02:21
Link
iceblinker wrote:
Of course you can get the same FOV on FF with the same lens by moving closer to the subject, but that's not what we were talking about in the discussion on FF. We were talking about the difference between sensor formats when all else is equal.
So your point is correct but irrelevant.
True but if only Focal Length and sensor size is important, then why not use AOV instead or is distance also important?
Of course you can get the same FOV on FF with the same lens by moving closer to the subject, but that's not what we were talking about in the discussion on FF. We were talking about the difference between sensor formats when all else is equal.
So your point is correct but irrelevant.
Stefan
K10D, K5
DA* 16-50, DA* 50-135, D-FA 100 Macro, DA 40 Ltd, DA 18-55
AF-540FGZ
K10D, K5
DA* 16-50, DA* 50-135, D-FA 100 Macro, DA 40 Ltd, DA 18-55
AF-540FGZ
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What is difference between VoF (field of view) and AoV (angle of view)?
K10D, K5
DA* 16-50, DA* 50-135, D-FA 100 Macro, DA 40 Ltd, DA 18-55
AF-540FGZ