Angle of View
Nov 1, 2019 20:29:54 #
I was doing some real estate photos today and this guy was on site with something of a pompous, know-it-all attitude. I gathered he was some sort of engineer or architect. Sure enough he approached me with the question, "what is your angle of coverage with that lens?". I told him I wasn't sure but guessed it was maybe like 120° since it was a Nikon 14-24mm f2.8 set at 17° (taped zoom ring) on a full frame D750. Well that answer wasn't good enough as he then asked how I arrived at 120°. I didn't give him a clear answer and avoided further contact.
I've looked at the available charts online, but is there a recognized formula to calculate angle of view given basic information for any lens? Just a curiosity and thanks.
I've looked at the available charts online, but is there a recognized formula to calculate angle of view given basic information for any lens? Just a curiosity and thanks.
Nov 1, 2019 20:36:29 #
Nov 1, 2019 20:39:25 #
Nov 1, 2019 20:39:25 #
Nikoneer wrote:
I was doing some real estate photos today and this... (show quote)
https://www.scantips.com/lights/fieldofview.html
When the guy asked you about the coverage why didn't you just say, "I'm not sure"? Then you wouldn't have had to steer clear of him.
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Nov 1, 2019 20:40:18 #
Haha.
I would have answered "From about here to about there.".
If anything else was said, I'd have said "It's a <brand><model>. You want to know, look it up, I don't know and don't care.".
I would have answered "From about here to about there.".
If anything else was said, I'd have said "It's a <brand><model>. You want to know, look it up, I don't know and don't care.".
Nov 1, 2019 20:40:19 #
Nikoneer wrote:
I was doing some real estate photos today and this... (show quote)
You were close enough for government work ...
Nov 1, 2019 20:41:27 #
CHG_CANON wrote:
You were close enough for government work ...
Nov 1, 2019 22:57:16 #
Nov 2, 2019 01:44:58 #
If he had asked me how I arrived at 120°, I would have simply responded with a wink and said, "intuition".
Nov 2, 2019 02:54:44 #
Nikoneer wrote:
I was doing some real estate photos today and this... (show quote)
How awkward. I am sorry for that.
Maybe if it happens again you can say something like “I don’t know the math. But I know about composition and this lens helps me make the composition”.
Nov 2, 2019 05:36:08 #
Nikoneer wrote:
I was doing some real estate photos today and this... (show quote)
Engineer NOT an Architect. Architect could care less and is more concerned about ascetics. They do not get into the weeds on such things but worry about the final product.
Nov 2, 2019 05:48:25 #
Nikoneer wrote:
I was doing some real estate photos today and this... (show quote)
Here is a very helpful set of calculators for angular and dimensional field of view, depth of field, parallax error, mosiac calculator, diffraction calculator.
https://www.tawbaware.com/maxlyons/calc.htm
I would have asked him if he was asking about angular or dimensional field of view - and when he realized he was out of his league you would just walk away, smiling to yourself. Or you could take the high road, give him the link to the tawbaware site and ask him to do you a favor, use it and tell you what it says.
Nov 2, 2019 08:32:10 #
Bill_de wrote:
https://www.scantips.com/lights/fieldofview.html
When the guy asked you about the coverage why didn't you just say, "I'm not sure"? Then you wouldn't have had to steer clear of him.
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When the guy asked you about the coverage why didn't you just say, "I'm not sure"? Then you wouldn't have had to steer clear of him.
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And also that it is the ideal coverage for what you envision when you shoot (or you wouldn't have taped the zoom ring).
Nov 2, 2019 09:34:21 #
The guy asked about angle of coverage. Angle of coverage isn't the same as angle of view. The angle of coverage of the lens isn't dependence on the sensor size of the camera you use it for. The angle of coverage determine how large a sensor you can use the lens. For example 2 lens of same focal length say the 2 Nikon 35mm dx and 35mm fx lens. The FX lens have wide angle of coverage. They have the same angle of view when used on a DX camera. When used on the FX camera the DX lens doesn't have sufficient angle of coverage to cover the FX sensor.
Nov 2, 2019 10:15:01 #
Ysarex wrote:
https://shuttermuse.com/calculate-field-of-view-camera-lens/
Joe
Joe
Using this his lens is 104.3 FOV @ 14mm focal length
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