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How a film camera superimposes the date onto photos [video]

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Re: How a film camera superimposes the date onto photos [video]

#31
I was picturing the engineers who must have done like a 1000 iterations of this stuff before they were able to come up with a crystal clear image on the film.

What an adventure it must be to make these things and one day finally having the joy to see the whole world use your inventions like this.

Having never worked on any hardware I can only imagine how much fun (and test of patience!) it must be to use/bend the laws of physics to make such things.

Re: How a film camera superimposes the date onto photos [video]

#32
post #6

I always get a kick out of seeing my videos randomly on HN. Ask me anything.

Hi Ben, as a long time follower, I just wanted to take this opportunity to thank you for what I consider an absolute jewel of a YouTube channel.

(I always get a chuckle out of your "Hope you found that interesting, bye!" at the end of your videos. Every time I'm thinking to myself, hell yeah I found that interesting, that's an understatement!)

Re: How a film camera superimposes the date onto photos [video]

#33
post #6

I always get a kick out of seeing my videos randomly on HN. Ask me anything.

Hello :) I'd like to extract a similar date module to use it on a different camera. Do you think it would be possible to make it print date past 2019 ?

Thanks

Re: How a film camera superimposes the date onto photos [video]

#35
post #14

Earlier quoted context omitted.

That's a good question. A Windows laptop. It's super annoying, constantly updating itself, forced reboots, network disconnections, fragile, yet is required for many CAD and acquisition/control proprietary software.

I suggest obtaining a copy of Windows 10 LTSC, much better stability and no mandatory updates/forced reboots. Might make it a bit more reliable.

Yes, or even one of the stripped-down W10 versions like Ameliorated or Ninjutsu.

Re: How a film camera superimposes the date onto photos [video]

#36
post #31

I was picturing the engineers who must have done like a 1000 iterations of this stuff before they were able to come up with a crystal clear image on the film. What an adventure it must be to make these things and one day finally having the joy to see the whole world use your inventions like this. Having never worked on any hardware I can only imagine how much fun (and test of patience!) it must be to use/bend the law…

Yes! I had a similar thought: we have the word sonder for the realization that everyone in the world has complex lives, it would be great to have a word that represents the amazing complexity of every single human-made object.

I look around me, and there are hundreds (thousands!) of human-made objects around me, and many of the more complex objects are made of multiple simpler complements themselves (like the projector in the video) and each of these objects likely involved a large group in their initial invention and then even more in their mass production. The invention also relies on previous discoveries.

Every single made object is probably the cumulative effort of hundreds or thousands of people- and even the most simple made object likely has a network of technological advancements and associated people that would be too complex for any single person to comprehend or map.

I would love to watch a documentary of someone picking the most ‘boring’ or simple made object and try to uncover the people and technology required to make it- would be a fascinating watch!

Re: How a film camera superimposes the date onto photos [video]

#37
TL;DR: there is a little light, a mirror and a small see-through LCD screen forming a projection through the back side of the film. Since the distance between the light source and the LCD screen is relatively large, the light acts as a point source and you don't need a lens for the image formation.

Re: How a film camera superimposes the date onto photos [video]

#38
post #26

The 1977 camera mentioned halfway through the video might have been the first consumer camera that superimposes the date, but it was common for aerial photos to have metadata like that added to the margins, like https://map.geoportail.lu/aerial/1977_30000/pdfs/0181.pdf

There are also digital cameras that "print" the date onto the pictures, I saw someone had this feature turned on and I thought explaining EXIF to them might be too difficult.

I know all about EXIF, but whenever I'm taking pictures that may end up being used in legal disputes[1], I deliberately turn on this feature. THis is for multiple reasons: EXIF data can be easily faked, everyone knows how watermarked timestamps work, and the baked-in timestamp will persevere across all subsequent media conversions (jpeg-to-bmp, emails, uploads, print-to-paper,picture-of-a-picture, PDFs)

1. e.g. pictures after a traffic accident, received goods in poor condition, or state of property at start of a lease.

Re: How a film camera superimposes the date onto photos [video]

#40
post #20

Earlier quoted context omitted.

Huge fan of your videos. What are the chances of quitting your day job and working on side projects/youtube videos full time, like StuffMadeHere?

I really liked owning my own business (MRI-compatible computer peripherals 2006-2011), and I'll very likely start another unrelated small business in the future. I also like to do YouTube videos as a hobby or at least Patreon-supported hobby, and not depend on them for main income, because I think it changes the character of the videos. If I depended on videos, I'd probably also start thumbnail optimization, A/B test…

Probably the most useful part of keeping YouTube as a side gig is that you are less likely to fall into the algorithm treadmill that encourages all creators to burn themselves out to enrich Google.

Your content is wonderful very impressive. Dumb question, but do you consider yourself a citizen scientist, or engineer, or maker or whatever, or do you dislike labels?

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