Visual acuity

Do we, photographers, have visual acuity? If we understand visual acuity as the capability of our vision to perceive, detect or identify spatial objects with good light conditions, we should have it. A distance from the constant object, if you see a small letter clearly, you have more visual acuity than another person that does not see it. Well, this is not enough condition to be a photographer, but it is necessary, although I know about cases of blind photographers

I went to the ophthalmologist to do the annual revision and I came up on the beautiful – and at the same time weird – Phoropther. Some time ago I had found a series of photos that I liked a lot about this subject and decided to do my own version. Later I realized that almost all versions of this device were very similar, its design is spectacular and all of us to see it the same way.

The Burns Archives

I remembered the famous photo report that Andreas Feininger made about the photo reporter from Life, Dennis Stock, in 1951 and some self-portraits with similar aesthetic. All these photographs make a reference to the relationship between the optical and the photographic and have a high formal weight.

 © Andreas Feininger

   © Andreas Feininger

The Phoropther has as much formal strength as the Leica and the magnifying glass in the previous photos, which makes it difficult to escape from the typical frontal photography. Aware of this I took the photo and here I explain how it was made.

  El Flaco

As always, I had the invaluable assistance of my friend El Flaco, who is always willing to help in carrying out my photos, as he did incountless times before, as well for the posts of this blog. I also could count on the collaboration from Visionlab, the company where I usually make my optical revisions.

In the first set of lights I placed a translucent umbrella below the camera and the fantastic OctoDome mini from Photofex above. Between them, I put a multipurpose aluminum frame that I made over 20 years ago and that still accompanies me. Before I used the frame to carry two Nikon cameras hanging from my neck with a single belt, but now I use it to put the camera in the axis of the light without the need for an arm and a counterweight for the flash.

Diy bracket

Diy bracket

After some first pictures I saw that the reflexions from the knobs of the Phoropther did not turn out as good as expected and therefor I decided to reverse the set. In the end the best lightning for the apparatus turned out being when the umbrella was placed above the camera. The two flashes I used were Yongnuo 560 with the batteries PB820 from Godox.

El Flaco

Last, I removed the aluminum plate that was on the wall with Photoshop since it distracted some. I also matched the tones of both lights and gave the set a warm dominant.

  Lighting Diagram

Visual acuity.pdf

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