Previous in Forum: Rock Tumbler to Recycle Glass   Next in Forum: CMBR
Close
Close
Close
10 comments
Active Contributor

Join Date: Apr 2007
Posts: 13

Photography Paradox

05/22/2011 7:30 AM

You all have probably experienced that a person's photograph taken when he/she was directly looking at the camera, appears like the person is looking at you irrespective of your position in front of the photograph.

In reality a person's eyeballs have to be at different positions to look different directions in front of him. But this is not applicable when you see a photograph of a person almost from any angle, provided the photograph was taken when the person was directly looking at the camera. For all looking angles the photograph appears to be looking back directly to the person(s) viewing the photograph.

How can we explain this?

Register to Reply
Pathfinder Tags: mirror optics paradox viewing angle
Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.

Comments rated to be Good Answers:

These comments received enough positive ratings to make them "good answers".
2
Guru
Popular Science - Evolution - New Member Popular Science - Weaponology - New Member

Join Date: May 2006
Location: The 'Space Coast', USA
Posts: 11109
Good Answers: 918
#1

Re: Photography Paradox

05/22/2011 7:42 AM

Because it is a two-dimensional representation of a 3-D object.

Looking at the photograph from the side only changes the apparent aspect ratio of the image and not it's 3-D position.

Register to Reply Good Answer (Score 2)
Guru

Join Date: Sep 2009
Posts: 1049
Good Answers: 88
#2
In reply to #1

Re: Photography Paradox

05/22/2011 9:48 AM

Exactly. And the eye contact is one of the first concious human experiences and is deeply enough stamped in our brain to be taken as base for further processing. S.M.

__________________
Life is complex. It has a real part and an imaginary part.
Register to Reply
Active Contributor

Join Date: Apr 2007
Posts: 13
#3
In reply to #1

Re: Photography Paradox

05/22/2011 10:24 AM

If that is the case how do you explain when a sculpture made 'looking at you' works the same way?

Register to Reply
Guru

Join Date: Sep 2009
Posts: 1049
Good Answers: 88
#4
In reply to #3

Re: Photography Paradox

05/22/2011 10:30 AM

Nope! Absence of iris and pupil gives that effect. Your brain fills-in missing info. S.M.

__________________
Life is complex. It has a real part and an imaginary part.
Register to Reply
Guru
United Kingdom - Member - New Member

Join Date: Aug 2010
Location: Resting under the Major Oak
Posts: 4347
Good Answers: 180
#5

Re: Photography Paradox

05/22/2011 2:07 PM

One of the worse things in doing social photography is stopping the subjects looking at the camera. You can get the faces angled correctly, but the eyes will still look to the camera.

One of my classic wedding photographs was the exchanging of the rings, only three in the photograph, simple, NOT! Bride, groom and minister all directed to look at what their doing, not the camera. Out of the hundreds I took I think I was happy with only 25% of them.

__________________
The reports of my death are greatly exaggerated.
Register to Reply
Guru

Join Date: Aug 2007
Location: London England.
Posts: 583
Good Answers: 10
#10
In reply to #5

Re: Photography Paradox

05/24/2011 3:46 AM

Hey! I've seen your picture under the major oak, are you the one with the eye patch or the one with the armband?

__________________
When I die I'd like to go peacefully in my sleep like my dad,not shouting and screaming like his passengers.
Register to Reply
Guru
Technical Fields - Technical Writing - New Member Engineering Fields - Marine Engineering - New Member

Join Date: Sep 2008
Location: Vancleave, Ms about 30 miles inland from Biloxi and the coast
Posts: 3197
Good Answers: 105
#6

Re: Photography Paradox

05/22/2011 6:11 PM

The effect diminishes the further away from the camera they get. That's why we have "portrait" lenses. The camera and the person behind the camera will both be within the model's field of vision. Use a close-up lens and see what you get; a cross eyed model.

__________________
Mr.Ron from South Ms.
Register to Reply
Guru
Hobbies - Musician - New Member Australia - Member - Torn and breading Engineering Fields - Nanoengineering - New Member APIX Pilot Plant Design Project - Member - New Member

Join Date: Jun 2006
Location: Magnetic Island, Queensland, Australia
Posts: 3721
Good Answers: 74
#7

Re: Photography Paradox

05/22/2011 11:02 PM

__________________
The Twain Has Met
Register to Reply
Power-User

Join Date: Feb 2011
Location: New Zealand
Posts: 128
Good Answers: 5
#8

Re: Photography Paradox

05/23/2011 2:24 PM

It doesn't have to be a photograph, La Giaconda does it also.

Register to Reply
Guru

Join Date: Aug 2007
Location: London England.
Posts: 583
Good Answers: 10
#9

Re: Photography Paradox

05/24/2011 3:20 AM

I got it wrong I thought you were talking about photographing two doctors.

__________________
When I die I'd like to go peacefully in my sleep like my dad,not shouting and screaming like his passengers.
Register to Reply
Register to Reply 10 comments
Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.

Comments rated to be Good Answers:

These comments received enough positive ratings to make them "good answers".
Copy to Clipboard

Users who posted comments:

Anonymous Hero (1); Bazzer Englander (2); Engineer Artist (1); ky (1); Oraka (1); ronseto (1); SimpleMind (2); TonyS (1)

Previous in Forum: Rock Tumbler to Recycle Glass   Next in Forum: CMBR

Advertisement