1. -”A CONCISE EXPLANATION”-
*Postil.
As always in this brief digression I will use words and concepts (already) been used
“from others about my work”.
-” THE SUPER POSITION -MOMENTUM- SPACE WAVEFUNCTION”-
°I am not obviously a scientist but ( almost “personally” unexpected) I was told
and explained by authoritative international characters, “Absolute Enlightenment”
in the art and photography “field” that, through an “unique and innovative use” of
The Analog Photocamera as a“filter between me and the reality”, I managed to get
into the metaphysics.
***I was also told that not many people in the world are able to perform this exercise
with noticeable and undeniable results .
§“Photo manent ,verba volant”.
>Let me just say with great humility that the “feeling” (although at the time quite
unconscious) boosting “my own climax TO FIND THE SUPER POSITION
-MOMENTUM- SPACE WAVEFUNCTION” , It is a wonderful feeling , both
physically than mentally, also having regard to the concrete results.
-“These are just words ... let the images communicate the concept”-.
***Best Regard,
C.M.R.

2. §In his manuscripts on painting, Leonardo wrote:
“The air is full of an infinite number of radiant pyramids caused by the objects
located in it. These pyramids intersect and interweave without interfering with
each other.…The semblance of a body is carried by them as a whole into all parts of
the air and each smallest part receives into itself the image that has been caused.”
-Nowadays, scientists and engineers prefer to think in terms of light rays rather than
Leonardo’s more poetic “radiant pyramids.” But light-field photography is based
precisely on his idea that the light arriving at any point—what he called the
“smallest part” of the air—carries all the information necessary to reproduce any
view that can be had from that position.
An ordinary digital camera do that?.
Not at all.
-In a conventional digital camera, the light rays hitting each point on the image
sensor combine. The sensor records the total intensity of the light rays landing on
each point, or photosite, but in the process loses directional information about
where the different rays came from.
>So the best like a typical analog camera can provide is the familiar two-dimensional
photograph, which has a fixed point of view and a focus determined entirely by how
the lens was set when the photo was snapped.
>Light-field photography is far more ambitious.
***Instead of merely recording the sum of all the light rays falling on each
photosite, a light-field camera aims to measure the intensity and direction of every
incoming ray.

3. §With that information, you can generate not just one but every possible image of
whatever is within the camera’s field of view at that moment:
For example, a portrait photographer often adjusts the lens of the camera so that
the subject’s face is in focus, leaving what’s behind purposefully blurry.
-Others might want to blur the face and make a tree in the background razor
sharp.With light-field photography, you can attain either effect from the very same
snapshot.
***The information a light-field camera records is, mathematically speaking, part of
something that optics specialists call the plenoptic function .
>This function describes the totality of light rays filling a given region of space at
any one moment. It’s a function of five dimensions, because you need three
(x,y, andz) to specify the position of each vantage point, plus two more
(often denotedθand(φ) for the angle of every incoming ray.
-When measuring light in a region that’s free of any obstructions, you have to keep
track of only four dimensions rather than five.
>Think about it:
If you know that a ray isn’t blocked, it’s simple to follow where it goes.
-Record where it hits one plane (x and y) and the angle at which it hits (θ an φ) and
you can work out where it came from and where it’s headed. The same is true for
any other ray hitting that plane at any angle. So with just the knowledge of the light
crossing a single plane, you can calculate the position and direction of the rays
filling the surrounding region, so long as there are no obstructions present.

4. §This four-dimensional function is called the light field (hence the term light-field).