Archive for the 'nassplatte' Category
Monday, August 28th, 2023
Deep Space Lecture: Ars analogica – where Hightech meets pure Analog
Eine multimediale Zeitreise zum Ursprung der Fotografie.
Erlebt mit mir den historischen Nassplattenprozess in Form von mikroskopischen Aufnahmen, dreidimensionalen Porträts und 4K-Videos. Bei dieser Reise führe ich euch durch die Geschichte, stelle euch authentisches Equipment vor und präsentiere die daraus entstandenen extrem ausdrucksstarken und hochauflösenden Porträts auf einer 9×16 Meter großen Laserprojektion in 8K. So habt ihr Fotografie noch nie erlebt!
Hier gehts zu Anmeldung für den 13. Oktober:
https://ars.electronica.art/center/de/deep-space-lecture-ars-analogica/
Thursday, August 3rd, 2023
Should you buy a scratched lens?
This topic brings often lots of emotion up. And honestly I was struggling myself buying lenses with scratches for some time. I still do. Thats why I wanted to take a closer look into this topic . Gary https://www.instagram.com/garygeezerphotoart/ sent me a scratched lens some time ago and therefore made this video possible. Thanks a lot for that!
But this is not the first scratched lens that I got, I bought a used canon 24mm lens a while ago from a shop for very little money. I knew already that the little scratches will not affect the image, but I still had a bad feeling. After Some years I can assure you, that all images that I shot with it looked great
You still are not sure if you should get a scratched lens for a good price? Then have a look at my video, where I show how I shoot the plates with a scratched lens. I discuss this topic with a fellow wet plate artist who is also a specialist in renovation of historic photographic equipment: Denis of wetplatedreams.com Denis started recently a YouTube channel where he spreads his knowledge of historic lenses.
As promised I posted the hires scans of the plates underneath. One plate is shot with the old Ross projection lens and one is shot with this very new Zeiss Epic projection lens.
Can you guess which plate was shot with the scratched lens? Click on the highres crops to see them in full resolution. You can use the chapters of the video to chump to the part where I explain what plate was shot with the scratched lens.
Shooting wet plates with this projection lenses can be very tough, because the dof is very thin. I also think that one of the lenses had some chromatic aberration. That means, that the blue light is focusing on a different distance than the visible light. This is sometimes also called chemical blurring or chemical miss focus with the wet collodion process, because the wet collodion process sees only some parts of the UV light spectrum (about 420 to 490nm).
I can only focus on the light I can see with my eyes, but some lenses focus because of the chromatic aberration the limages for wet plates on a different spot. Thats how a miss focus can happen. But you can see how extremely sharp both lenses performed anyway. To judge the sharpness for image A, have a look at the top and the right side of the cropped scan.
Even I knew what was the plate that was shot with the scratched lens, and I still mixed them up and was convinced I was right when I showed it to my intern, shows how similar the plates are. This was another point that went to the scratched lens. Scratches and fungus mostly cover only a small percentage of the lens and thats the reason it won’t affect the image that much as you would think.
If you want to support me and get deeper into topics like that, you always can book a workshop or join our Patreon team. Or just book a portrait session . Check also my Instagram channel for latest news: https://www.instagram.com/mhaustria/
So what does that mean, should you buy scratched lenses? From our perspective, you definitely can buy scratched lenses. You will save money and still get the same results. It only affects the value. As always, it depends how big the damage of the lens is. More about that in my video. If you buy lenses as an investment, you probably will look for a mint lens, but here you have to put lots more money on the table.
At the end, it all depends on your needs.
Wednesday, July 12th, 2023
It’s time to say goodbye – a story about an end and a new start
Many years ago I renovated the house of my grandma and with that came also a big garden full of trees. Every year I am lucky to harvest fresh raspberries, apples, pears, cherries and many other fruits. It’s so wonderful to wake up in the morning and get yourself some fresh breakfast from the garden.
The biggest and probably oldest tree of all is my cherry tree. I remember climbing it when I was little. It brings a wonderful big shade during the hot days and it’s fruits are so delicious.
I always thought this giant beauty will outlive me for sure. But after the last visit from a gardner I learned that the tree is probably completely hollow already and it it will be soon not save anymore to walk under it. That really made me sad, because I have so many memories with this tree. That was the moment, when I realised, that I want to capture a last memory on an ultra large format ambrotype. I captured already a tintype of some cherry blossoms of this tree many years ago. and I am really glad that I did.
I did a similar plate with the same setup last year, when I captured the rebirth of one of my apple trees.
The tree looked like It was dying, but it grew out of it self again. When I thought it was dying, I gave it another year. And exactly in this year it grew new branches. And yesterday I had the first of its apples again for breakfast.
But for the cherry tree I wanted to do things a bit differently. Thats why I used a very old collodion, old developer and a stronger fixer. With overexposing again, this should give me a warmer look with again lots of solarization.
Maybe you ask yourself why I exposed for the tree trunk on both of these images. If I would have exposed for the green leaves or thin branches, the ambrotypes would have been much more contrasty you may think. My thoughts are, that the trunk is one of the most important parts of the tree. If it gets hollow, there is a great chance, that the tree will die.
I chose these portrait of me here, because it fits in perfectly into this story. Some time ago I booked a portrait session with Michael Liebert. He knew that I am connected to my garden and to this tree, thats why he choose to take my portrait there. And now this portrait is the prefect fit for my story today.
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.
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
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.
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.
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
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.
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.
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.
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.
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.
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?
But there is more, I got also a very tiny lens. I guess I need to build a camera for this one
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.
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
Wednesday, December 28th, 2022
Denis Krieg – Inspired Series
I’ve known Denis for a few years now and over time a nice friendship has developed. We met for the first time during the Camera Obscura Festival in Germany, but we were in contact several times before that.
From Denis I bought my current large format camera and some lenses. Also one of my more important lenses – the Dallmeyer 3b which I use a lot for this series is from Denis. Read more in this post https://blog.markus-hofstaetter.at/2021/03/inspired/
His knowledge of historical equipment is fascinating. His craftsmanship and restoration skills are also second to none. Check out his website here www.wetplatedreams.com.
Denis keeps historic history alive with his work.
I also captured a portrait with Denis and his Wife Sybille that I like a lot.
Friday, November 18th, 2022
Wet Plate Strobe Calculator with Light Modifier Comparison
How much power do I need for my wet plate setup? I get this and similar questions asked a lot. Thats the reason I build a calculator for that. With the calculator, there comes also a knowledge base. Because there is much more to know about strobes and the wet collodion process. This is exclusive for Patreon supporters (Tier 2). With tier 2 support you get, also wet plate troubleshooting, access to recorded Patreon videos, early access to videos and much more. Link to this Patreon posting: https://www.patreon.com/posts/wet-plate-strobe-74548519
More about the calculator in this video:
Wednesday, September 7th, 2022
Freilichtmuseum Salzburg Wet Plate Experience (rainy days)
Wet plate in the rain? Sure thats why its called wet plate 🙂 We had a great time in Salzburg and it was a pleasure to be there again. It’s great to do portraiture in these wonderful old houses. You have to visit this museum when you are nearby. It is totally worth it. The best time would be when I shoot portraits there 😉
