Lmst

❗ REMINDER❗16..6 um 19 Uhr in unserer Sternwarte! Es gibt einen deep dive in die Funktionsweise von Teleskopen, viele Formeln inklusive! Und nein, Größe ist nicht alles was zählt...🔭
#airy #optic #telescopes

#Scientists have demonstrated #quantum #teleportation over the #Internet for the first time

It may not be teleportation like you see in the movies, but it's real. Scientists at Northwestern University have successfully demonstrated, for the first time, quantum teleportation via #fibre #optic cables carrying internet traffic.

https://www.yourweather.co.uk/news/science/scientists-have-demonstrated-quantum-teleportation-over-the-internet-for-the-first-time.html
@meteoredofficial

#science
#datatransmission
#datatransfer
#fibre
#computing
#fibreoptic
#Data
#explore
#memes
#meterored

I’ve been using Optic’s CLI, an OpenAPI tool that does a bunch of things including diffing OpenAPI descriptions and comparing HTTP traffic with OpenAPI. My use case was an established API that didn’t have an OpenAPI file yet – using Optic we could create one as a starting point, and then move to a design-first workflow to make the changes that I was there to help with. For this blog post, I’ve used the example of https://api.joind.in as an excellent representation of an API still in use, but without an OpenAPI file and not built with code that a code generator would recognise. […]

https://lornajane.net/posts/2025/from-http-to-openapi-with-optic

I set the #lenses quite well, with the maximum focus values, creating a sensor for each but I would need to see real photos as a reference to make comparisons, almost all lenses tend to blur images near the edges of the #lens.
Optic lens #Tessar 1953 from a patent by H Zollner, based on that of Paul #Rudolph of #Zeiss. #b3d #Blender #Blender3d #optic #3d

Images showing a 3D Ford Mustang rendered with Blender 3D and a 1953 Tessar lens from a patent by H Zollner, based on that of Paul Rudolph of Zeiss.

The first macro #lens, this #optical group, has a high working range from near to far, and works well even with a low F/Stop.#optic #3d #Blender #b3d #Blender

Image of a scanned 3D model of a Happy Buddha statue, rendered in extreme close-up, with Blender and an optical group of 3D lenses, for macro photography.

Image of a scanned 3D model of a Chinese dragon, rendered in extreme close-up, with Blender and an optical group of 3D lenses, for macro photography.

Image of a scanned 3D model of another Chinese dragon, rendered in extreme close-up, with Blender and an optical group of 3D lenses, for macro photography.

Image of a group of scanned 3D statues, rendered in medium field, with Blender and an optical group of 3D lenses, for macro photography.

It would be great if I found a way to use a #3D mesh F/Stop, on the left a 3D F/Stop on the right the #Blender one, both with f/stop at 8 the 3D one is approximate. But I have to increase the light and samples, but it seems to work #b3d #optic #lens

Rendering test with Blender of an optic lens group with a physical 3d f/stop

Rendering test with Blender of an optic lens group with Blender f/stop at 8

Screen shot of Blender UI showing the F/Stop between lenses and some setting of the tested F/Stop modeled in 3D.

A bit dirty one, now seem more photo realistic, but it still need some more textures in too clean parts. #b3d #Blender #Blender3D #optic #lenses

Blender rendering of an old Fiat 500 3D model with 3D optic lenses.

After a long time I start to see the results, it's a shame that with path tracing rendering engines, it is not possible to have small #photographic objectives. #b3d #Blender3D #Blender #3D #optic #lens

3d rendering with Blender' Cycles of an old Fiat 500 rendered with 3D lenses modeled from patent specifications.

I've update whole objectives assembly with new Ray Portal as a Camera's sensor, this change improved a little bit even the rendering time. first row #Zeiss Tessar, and second Row H. #Zollner #Tessar, both with new Sensor. Now I would need a bit of experience with photography to do better, some example photos with these lenses and a bit of technique would help me improve further. #optic #lenses #3d #B3D #Blender3d #Blender

3D rendering done with Blender with the example file of a BMW created by Mike Pen, with a 3D camera lens created with the Zeiss Tessar patent

3D rendering done with Blender with the example file of an Aston Martin, with a 3D camera lens created with the Zeiss Tessar patent.

3D rendering done with Blender with the example file of a BMW created by Mike Pen, with a 3D camera lens created with H. Zollner's patent of a Tessar lens.

3D rendering done with Blender with the example file of an Aston Martin, with a 3D camera lens created with H. Zollner's patent of a Tessar lens.

I don't know what I did but now with the ray portal I can visualize a strange phenomenon of light rays passing through the various #optic #lenses of the objective assembly,but I compromised the previous node which I can no longer reproduce.😅😢 #b3d #Blender3D #Blender

An image that was created randomly, and which visualizes the path of the lacue through 3D lenses created with Blender, you can see the rays of light passing through the lenses, image created with the Ray Portal BSDF material of Blender 3D

The previous image now with a scale vector, that have magnified the result.

Today after random attempts, because in reality I still haven't fully understood how it works, I implemented a Ray Portal as a sensor, and this with random values allowed me to correct the angle and expand the field of vision of the lenses, previously some were too narrow and to frame the whole scene you have to move the camera a few kilometers away. Same camera with Ray portal and not and the difference is evident. #optic #blender3d #Blender #lens

Blender rendering test without Ray Portal BSDF, the image show the a narrow filed of view in a 100mm lenses optics assembly.

This is the same Blender rendering test but with a Ray Portal BSDF, the image show the a wide filed of view in a 100mm lenses optics assembly, that can be adjusted via vector mapping node.

I have made a simple video which highlights the differences between rendering with or without chromatic aberration. this method is better than #Blender composting that deform the images. and with #3D #lenses there are not diffraction changes. #b3d #Blender3d #optic

Tomorrow I will try to finish this old Pixar scene, and I will try to do some rendering test with some of the 3D lenses I created, but already from these tests without doing much, I would say that the difference is noticeable. :) #b3d #Blender #Blender3D #optic #lens #3d

Chromatic aberration, without composting only with physical 3D #optic #lenses. #b3d #Blender3D #Blender

Heck in the end the best of all is the simple one, I tried all the known dispersion methods, lots of nodes, but the one that comes closest to the photos is to use three different IORs with 3 diffraction materials red green and blue. #b3d #Blender #Blender3D #optic #lens #3D

Now the dispersion is better, I will look for a way to implement the chromatic aberration of the #lenses using the actual values for the lenses, but it will not be easy, to do it, I have to find a solution for the brightness. #3D #optic #b3d #Blender3D #Cycles

I'm doing some checks by comparing the 3D #optical #lenses, but it seems to me that #Blender's f-Stop values, in addition to having scale problems, in this case the model of the Fiat 500 is in meters and OK, however #b3d's camera it has an incorrect F-Stop value. Left side b3d all with f/Stop is 0.2, others with 3D lenses are more realistic one with f/Stop at 8 and other to 18.0 Camera 35mm and 100mm #optic #lens #photo #3d

Image with a 3D Fiat 500 rendering with test of the Blender Camera 35mm F-stop 0.2

Image with a 3D rendering with test 3D Optic Lens Camera 35mm F-stop 8

Image with a 3D Fiat 500 rendering with test of the Blender Camera 100mm F-stop 0.2

Image with a 3D Fiat 500 rendering with test of the Blender Camera 100mm F-stop 18.0

I found an interesting web about Paul Rudolph and his #optic #lenses design, one of the pioneer of #photographic objectives. I want to make those patents https://zeissikonveb.de/start/geschichte/personen/paul-rudolph.html

Old #lenses are always excellent, especially those created by pioneers such as Rudolph Paul who created the lenses for #Zeiss. #b3d #Blender #Blender3D #optic #lenses #3D

The best add-on for #optic lenses is #LensSim, it's fantastic, as well as already having many preset lenses you can insert and save other cameras with real data, today I inserted a new lens into the database, Lens Sim is incredible. #b3d #Blender3D #Blender

#optic

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