That's incredible. It took me about 2 hours to put my 8-blade Canon secondary aperture back together. One of the most patience-trying activities I've ever done. Twice.

Thank you. Just pure info. Very well. Was thinking about inner workings... and within 7 minutes all is clear.

Until today I've always wondered how this worked thanks for satisfying my curiosity 👍

Its really good man thanks for sharing

Thanks so much i was always curious about this mechanism

Thank you! I was wondering exactly how apertures work!

Excellent ! Thank you very much.

Very helpful!

thx that has been effective for me🙏

Awesome video :)

Thanks man for the video

Thank you sir!!

Helpful!

Very enlightening and easy to understand. Thank you! 😊

Informative thanks

Thanks for making this video. It was really helpful for me.

thanks 👍

Thank you very much!

Nice explanation of aperture function :-)

Very interesting! So what we see here, is that the blades are pulled by the top ring, causing them to travel through the lower guide rail while also rotating inward? I imagine the rotation of the blade is caused by the upper peg having a different path of travel than the lower peg.

This was very interesting When I was a child I used to see aperature doors in cartoons Then one day I decided to find out how it works Last I remember Centre pivot and side rod

I remember the scene Dallas moving through the air shafts in Alien 1. The shafts was getting closed just like this aperture 😬😬🙃

Thank You - ! i came here to make such parts and a big cartoon diaphragm :) I do the same things with the dumpster utilities before getting rid of them completely just as you did with the broken lens :) - tear them apart!

Nice

great! how hard will it be to change the whole thing to one ready has 12 or more round blades??

hello! Is there a reason why you don't assamble it upside down? seems that it would be easier to put the dots in the small holes. Thanks for the video.

I have a question. Under what circumstance could the aperture get completely closed? I disassembled part of a 35mm lens to clean the blades and at one point their travel points seem to change so it didn't fully open and it went passed the smallest aperture (completely shutting) so I didn't try to open the mechanism any further and manage to get the points back to their position but I'm still concerned that they could be in the wrong positions...

For an O’Neill cylinder, I thought the central spine Will be held in place at the ends and in several areas in the middle, and you could have essentially an aperture mechanism like this and you could use mirrors to illuminate the interior, or at least help it. This will be useful with solar and fission, besides hydrogen fuel cells if you were parked by Saturn and Jupiter The other possibility, is to use fission and fusion, along with solar to help power their lighting system. That would be useful to give you an idea for an interstellar class cylinder. That’s just not ideal for around the solar system where you already have a star.

Hi Tome, is there any way of taking photos of each individual part? Trying to re-create this mechanism in 3D 🙂

Just out of curiosity, where did you happen to get this part? I am looking for one for a project for my university as a mechanical engineering student.

i bet this is how they made the torture freddy eyes

Question, how does constant apertures stays constant throughout the different focal length on some expensive lenses, what is the mechanism behind?

What material are the blades made of? Plastic or some sort of metal?

What lens is this mechanism out of?

Maybe im just dumb, but how the hell does the sensor see through the aperture blades

Maybe you should change the title. This video does not explains how it works only how to manualy change the aperture.