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Archive for March, 2023

Wednesday, March 29th, 2023

Thoughts to my video about ai

Ai needs to be addressed by all governments to make a change. And they are already to late. The result will be, that people need to adjust. Like painters did when photography was invented. There will be new jobs created because of ai. And for sure some of these jobs will earn less money than the job that was needed for the same task without ai. I have the feeling that this new technology can not be stopped anymore. To many people have invested to much money. Microsoft is already using chatGPT parts in Outlook, Teams and much more, like it’s own search Bing(Google stock crashed on that day when they did the first demo) For example, mails are created automatically because of the communication you had before – its learning to become you. Most companies use ai already for their business. Politicians who should have done something, will not do anything because the world is ruled by money and when there is a technology that can easily make you more money, not many with the power to stop it will stop it. I also think there are lots of areas where ai will help us. To fight diseases for example. So it’s more about regulation than to stop ai.

As said, ChatGPT consumed one Gigawatt in January and I can imagine that all images based AI will consume much more. There you have another reason why this can be bad for us. And still the governments all over the world will tell the people to save energy with electric cars and alternative heating solutions and so on. Nobody talks about power consumption of ai or other internet services.

And chatGPT is just starting. They needed two month to gain 100million users. Instagram needed 30 months, Google translate 78months and Facebook even longer. While Meta consumed already 9.4 Terrawatt in 2021, with all ai growing faster, the power consumption will grow as well. I would love to find more articles about that.

But there are also companies that think ahead. I am testing Adobe Firefly for a magazine right now. This ai was trained by licensed images only. That means artists were paid in some way and that is a good thing (It’s not as good as I thought it will be, I wrote another article about it and will link to it here, as soon as it is online). There is a different way to do things, but I don’t see anybody regulating ai these days for the reasons mentioned above. It’s all about money and I am not a fan of it. 

I think there could be a chance to regulate image ai for commercial use these days. It is the fear of people who use ai images commercially. Regulation will start if another ai detects copyrighted images were used to create your image or when lawyers get their first case where they can sue somebody who sold a generated image that looks similar to an existing one from a client. Both cases are again about money. This could be also a chance to regulate Midjourney, but I don’t see anything that can regulate ChatGPT.

With the wet plate process I see myself in a different position, because people get an experience that can not be replicated that easy with ai. I also don’t see my self being a huge fan of ai generated images, but it can be useful in some cases. I don’t like to just talk bad about ai, I am more a fan of finding solutions. As mentioned in a previous post, ai based images should get digital copyright baked into the file, so these created images can be tagged easily on all platform as “computer generated image”.
If you want to learn more about that, then check out these links about digital watermarks:
Wikipedia article about digital watermarks
Image tag, a company who offers digital watermarks as a service
An Article on science direct.com about digital watermarks
Digital Watermarking Techniques and Security Issues from Jordi Nin and Sergio Ricciardi
As far as I understand, you even can screenshot/photograph such an marked image of the screen and the digital copyright still remains. Let’s hear your thoughts about it. I added a gallery underneath with portraits. Let me know which one you think are generated and what gave it away? Maybe you see similarities to existing images…
There is also an easter egg “symbol” in the video that shows how ai caught us “over night”. here is a little hint: “don’t feed them after midnight”

A new update just came up today and its worth a read: https://time.com/6266679/musk-ai-open-letter/

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  • Posted by Markus | Filed in ai, portraits | Comment now »

     

    Monday, March 27th, 2023

    Sad News, DPReview is closing its doors

    Amazon is closing dpreview.com, I never thought such a standard in this industry will be gone in a few days. I put my thoughts in a video. This is frustrating for me, because such a great source of information soon is no more

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  • Posted by Markus | Filed in video | Comment now »

     

    Wednesday, March 22nd, 2023

    Traveling with an Ultra Large Format Camera for a Wedding Wet Plate

    With todays video I want to give you a glimpse how it is to travel with an ultra large format camera. This time I didn’t bring my darkroom tent, because I could use the shop on the farm. Traveling with my big camera is always a hassle and can bring some troubles with it. But this time it worked out great.

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    Wednesday, March 15th, 2023

    Testing 6 Types of Wet Plate Varnish

    I did a live stream about different types of varnish for my Patreon supporters (If you join tier 2, you can rewatch the recording of the live stream). Because some of you complained after my posting about Lukas varnish that this one is not available in your country, I bought more different ones and did this video. Enjoy guys: I show tested lots of interesting alternatives. My favourite right now is the Cobra odourless varnish gloss 102. You can get it here: international https://amzn.to/3YAVx8k Germany https://amzn.to/429li2D

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  • Posted by Markus | Filed in ambrotype, collodion, diy, nassplatte, varnish, wetplate | Comment now »

     

    Wednesday, March 8th, 2023

    Shooting an ultra fast lens (140mm F1.0) with an ultra large format camera

    In short words “this lens is something else”. It’s extremely fast, huge and has a strange focus distance. It was used in Sony CRT Projectors from 1997. I bought it some years ago from a very interesting guy. He had so many more great stuff in his shop and I regret that I did not buy more. It took me some time to find the right opportunity to use that lens. But I think it was worth the waiting. I am glad my friend and former workshop participant Alois Stingl came over with is wonderful ultra large format camera.

    Before I could use it, it needed some cleaning, I used a cloth that was soaked with water and just put it on the lens without wiping to avoid more scratches.

    with some patience I could clean it.

    I measured the lens at infinity to calculate the F-Stop. I measured 135mm and the front element was 145mm That is about a F0.9 lens. But a document I found on the internet told me its more an F 1.0 lens. Still crazy fast.

    You can see here how short the focusing distance is. That makes it hard to focus un an ultra large format camera.

    When I saw the yellow coating on the front element of the lens, I thought about Mathieu Stern’s video about radioactive lenses. If it really is made of Thorium, it is indeed radioactive, but only for a very small amount. Watch Mathieu’s video to learn more about this Material

    Thorium was used to get more light into the lenses back then.

    Because the lens is very fast it is still dangerous. If it focuses the sun on something, it will start to burn immediately. That’s the reason you should not put the lens near a window and always put a lens cap on it.

    In the video I will show you how easy you can start a fire with that lens

    I thought it would be interesting to calculate the crop factor of an 40x50cm ultra large format camera. If you use the common formula to calculate crop factors you will see that this plate size has a crop factor of 0.0067 compared to a full frame sensor. With that you also can calculate the comparable depth of field F-Stop. This would also be F 0.067 compared to F 1.0 on a full frame camera. When I tried to focus on the ground glass, I could barley find something in focus. Thats why you see me focusing for a very long time.

    it took quite some time to focus with this very fast lens.
    I think this shows pretty well how sensor and plate sizes compare

    But there is more. a 140mm lens is a tele lens on a full frame camera, but it’s a wide angle lens on an ultra large format camera. This is because of the bigger plate size of the ULF camera. listen to my full explanation in the video.

    My drawing shows in a simple way that the subject needs to be farer away from a full frame sensor the get the same angle of view as the close setup of the ULF camera.

    To “connect” the lens to the camera, I designed and printed a basic flange in Tinkercad. It needed some pool line and tape, but eventually it worked out.

    I think Tinkercad is one of the most yeas to use tools for 3D printing.
    a very basic part, but incredible helpful
    No screws, just tape, pool liner and my 3d print. Sounds funny, but worked wonderfully

    The next issue was the fact that my darkroom was not made for 40x50cm plates. only for 30x40cm ones. After some tests with smaller plates, we only had one cup of developer left. Beside that, everything starts to get unpleasantly expensive if you pour on plates with this size. So my goal was to make it work with only one attempt. I did some dry runs to get comfortable with everything. Not only the dark room work was something I had to prepare for, but also the camera. These old beauties all have some quirks. Besides that, Alois made a beautiful plate holder by himself. These holder needed also some special attention. But as explained in the video, I love these challenges. It makes the result at the end even more sweet.

    To calculate the strobe power I needed, I used my wet plate strobe calculator that I created for my Patreon supporters. Since I made it, I use it all the time for myself, because it makes life much easier with the wet plate process. If you are a fan of analog photography and the wet plate process, have a look at our wet plate conversation magazine on Flipboard. Besides many great stories about our favourite process, you’ll wind there also work from other wet plate artists.

    I really like how this portrait turned out. As expected it is very abstract because of the F-Stop and the wide angle lens.Here you can see again how huge that tintype is.

    But this is not the end, because of some kind of funny coincidence, a former workshop participant sent me a very similar lens over. I am thinking to do a still life plate with that one. What do you guys think?

    Two very similar lenses. Funny how sometimes things turn out.

    But there is more, I got also a very tiny lens. I guess I need to build a camera for this one

    A full functional lens in the size of a thumb. I haven’t seen such a thing before. What a cutie.

    I hope you enjoyed that journey. It took me a long time to finish everything, but I am again glad that I worked through it.

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    Wednesday, March 1st, 2023

    How to fix this Tintype/Wet Plate Problem!

    I see more and more lines on tintypes these days. From my point of view these appear because of glue residue. In todays video I show you how you can get rid of them. Hope this helps. Let me know if it solved this for you or if you have still this issue. Scroll down for samples

  • Get yourself a beautiful print here: http://prints.mhaustria.com

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