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Field of view vs. Angle of view!
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Mar 28, 2023 13:47:00   #
photogeneralist Loc: Lopez Island Washington State
 
ThreeCee wrote:
I see field of view and angle of view used interchangeably a lot in photo tutorials. I have always thought that they are very different. Field of view is what you see in the seen. It is more a function of the sensor size for a given lens.
Angle of view is more related to the focal length of the lens. A wider lens ie. 35mm will have a wider angle of view than a 100mm lens.
The reason it is important is because wider lenses tend to have more perspective distortion. One of the reason 85mm is used more for portraiture than the 35mm. You can get the same field of view with both lenses by changing your distance and cropping but the angle of view will be noticeably different. Thoughts?
I see field of view and angle of view used interch... (show quote)


Seems to me that this whole thread is inconsequential. In any given photo the photographic effect is the same no matter which name you call it by.

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Mar 28, 2023 14:40:22   #
amfoto1 Loc: San Jose, Calif. USA
 
imagemeister wrote:
FOV measured in linear feet/meters from left to right - AOV measured in angular degrees of the light cone described by the diagonal of the sensor/film size......They are very closely related !


This is correct.

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Mar 28, 2023 16:45:43   #
E.L.. Shapiro Loc: Ottawa, Ontario Canada
 
photogeneralist wrote:
Seems to me that this whole thread is inconsequential. In any given photo the photographic effect is the same no matter which names you call it by.


I am certainly not into needless technobabble. I don't always need to "do the math or geometry" every time I shoot. It is good, however, to know the various theories and formulas, optics, etc that may help in finding solutions to problems.

When I started out in commercial photography, I used large-format film cameras. I need to be aware of the format coverage of each lens in order to ensure that I could use all the swings, tilts, and shifts without unwanted vignetting. I cou to just purchase a load of expensive lenses and find out their angle of field and view. One had to have a good idea of these specifications when selecting various lenses.

Nomenclature is not "inconsequential" if you are trying to teach/learn. Especially in online conversations, one needs to use "language" and illustrations that clearly explain concepts.

Of course, if you aren't interested in all these technicalities, they are not essential for your photography. You get a lens, plug it in, look through the viewfinder, see waht it encompasses at various distances, zoom in and out if possible, and you will find out soon enough what it does, OR NOT! Sometimes folks are not satisfied with results or things don't work out as planned and they need to troubleshoot or find a solution- that is where the theory comes in.

Also- there are lots of myths and folklore in photograhy- "old wives' tales" and all kinds of misconceptions. Sometmes just using the wrong terminology exacerbates the confusion.

I try to field lots of questions on this forum. There are many questions that are very rudimentary and may seem unimportant or somewhat elementary but they are not unimportant to the questioner. So, what should folks in the know do- dismiss the question as insignificant or try to furnish a logical answer or good reference material?

At the end of the day- waht is this forum for? Is it like "middle school" where nasty adolescents shame each other, and criticize one another about things that have nothing to do with photography like grammatical errors, lengthy posts, and implying that folks are posting stupid questions or overly complicated answers? Or should we simply share, converse, and help each other out?

If I recommend a book, one can read the entire contents or I COULD say "page 34, paragraph 3" and toss the rest of the book in the garbage. That is up to threader- not me!

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Mar 28, 2023 17:16:29   #
imagemeister Loc: mid east Florida
 
photogeneralist wrote:
Seems to me that this whole thread is inconsequential. In any given photo the photographic effect is the same no matter which name you call it by.



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Mar 28, 2023 20:53:48   #
fetzler Loc: North West PA
 
E.L.. Shapiro wrote:
I am certainly not into needless technobabble. I don't always need to "do the math or geometry" every time I shoot. It is good, however, to know the various theories and formulas, optics, etc that may help in finding solutions to problems.

When I started out in commercial photography, I used large-format film cameras. I need to be aware of the format coverage of each lens in order to ensure that I could use all the swings, tilts, and shifts without unwanted vignetting. I cou to just purchase a load of expensive lenses and find out their angle of field and view. One had to have a good idea of these specifications when selecting various lenses.

Nomenclature is not "inconsequential" if you are trying to teach/learn. Especially in online conversations, one needs to use "language" and illustrations that clearly explain concepts.

Of course, if you aren't interested in all these technicalities, they are not essential for your photography. You get a lens, plug it in, look through the viewfinder, see waht it encompasses at various distances, zoom in and out if possible, and you will find out soon enough what it does, OR NOT! Sometimes folks are not satisfied with results or things don't work out as planned and they need to troubleshoot or find a solution- that is where the theory comes in.

Also- there are lots of myths and folklore in photograhy- "old wives' tales" and all kinds of misconceptions. Sometmes just using the wrong terminology exacerbates the confusion.

I try to field lots of questions on this forum. There are many questions that are very rudimentary and may seem unimportant or somewhat elementary but they are not unimportant to the questioner. So, what should folks in the know do- dismiss the question as insignificant or try to furnish a logical answer or good reference material?

At the end of the day- waht is this forum for? Is it like "middle school" where nasty adolescents shame each other, and criticize one another about things that have nothing to do with photography like grammatical errors, lengthy posts, and implying that folks are posting stupid questions or overly complicated answers? Or should we simply share, converse, and help each other out?

If I recommend a book, one can read the entire contents or I COULD say "page 34, paragraph 3" and toss the rest of the book in the garbage. That is up to threader- not me!
I am certainly not into needless technobabble. I ... (show quote)


Perhaps this is the wisest answer - just look through the viewfinder to see what each lens does.

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