I honestly couldn't tell whether or not this was a self-deprecating joke on your part.
Since it isn't I'll address this...
Clarifying some terms.
The iris of the eye is the physical structure, the pupil is the hole.
The iris diaphragm of a camera lens is the physical structure, the aperture is the hole.
So you're arguing that this image is formed by the camera pointing at a mirror and capturing a focused image of its own iris diaphragm? Is that right?
Therefore Yalcin's camera, pointed at ordinary glass, or a mirror, could accidently capture a focused image of an internal element of its own lens. Right, so far? Obviously the lens is focusing the light into an image, as usual.
But that's not what PaulofNZ is claiming in post 314. He's claiming that these Yalcin flying saucer images are caused by an internal reflection of the
back surface of the "lens adapter for the tele-converter."
It's actually a
control ring adapter: a specialized accessory for cameras that allows the attachment of lenses from one mount system to a camera body of a different mount system, while providing additional control functionality. He picks one out at random from an online catalog because he thinks some its mechanisms look about right to match details on a Yalcin flying saucer.
Here I did a live debunk on it.. and feel I have solved it
as internal camera artifact,, a reflection of a part of the
lens adapter for the tele-converter
He's arguing that we are seeing a reflection of the
back part of the thing ('lens adapter for the tele-converter") we see in this excerpt from his longer video. He's trying to match up details of a Yalcin flying saucer image with focused surface details on the back side of this metallic structure.
...but yeah look... Square bit matches up with that bit there.. That hole there, if you unscrew a
couple of screw hits [?]. and you wiggle it around, they're going to look like they're moving...
A
teleconverter, also known as an extender, is an optical device used to increase the focal length of a lens. Essentially a secondary lens that is mounted between the camera body and the primary lens.
A focused image is formed by a glass lens through the process of refraction.
Refraction is the bending of light as it passes through the lens. When light rays pass from one medium to another (e.g., from air to glass), their speed changes, causing them to bend. The amount of bending depends on the refractive index of the materials involved and the angle at which the light hits the surface of the lens.
Evidently, he's trying to argue that internal reflections are hitting the back surfaces of the control ring adapter - which is between the back of the lens and the front of the teleconverter - and these reflections are somehow focused onto the sensor. Impossible. How could the elements of a teleconverter produce a focused image with that kind of light path? There's such a thing as
minimum focusing distance.
And all sorts of other things... My head is hurting thinking about it.
-Multiple paths can cause light to focus at different points within the lens system. How do you get this single, in focus, detailed image?
-How could you zoom in and out on this image?
-This would require a really powerful external light source. Which would cause all sorts of other ghosting flare artifacts.
Or... He's saying the control ring adapter is between the teleconverter and the camera body. I'm not sure. Slogging through that almost 3 hour long video is a tiresome chore. In this case there would be no lens elements between the mounting bracket and the sensor.
In either case... Focus doesn't just magically happen. It relies on very specific conditions.
Besides...
is there even a light path at all? A ring adapter should fit the lens flush to the lens mount flange. So how is there a light path? Not going into that. I've done enough work. If someone else wants to address that, go ahead.