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Paper salat, per mitjà d'una ampliació de negatiu digital. He emprat sal artesanal de Gerri, al Pallars, per aquesta copia.
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Salt print from a dry plate negatve, but using an enlarged digital negative. For the iodizing of the salt print I used hand harvested Pyrenees salt from Gerri de la Sal.
For Macro Mondays, granules.
The background is what might be called diffraction grating foil on cardboard. The color is close to accurate. Window light.
Sodium Chloride (NaCl) with various impurities to jack up the price. These small tins contain Harmon's Artisan Salt Collection. These are around six bucks. To put that in perspective you can get a 26 oz box of generic table salt for $.54 almost anywhere. But these are pretty and in their tins make an interesting display.
Copia en paper salat d'una placa seca que vaig fer del monestir de Sant Cugat, per mitjà d'una ampliació de negatiu digital. He emprat sal artesanal de Gerri, al Pallars, per aquesta copia. També vaig intentar virar amb or, però després de fixar amb "hypo", el que clarament no ha fet efecte.
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Salt print from a dry plate negatve, but using an enlarged digital negative. For the iodizing of the salt print I used hand harvested Pyrenees salt from Gerri de la Sal.
Photo Recipe:
Salt shaker and white plastic "table"
I handheld flash unit using TTL cord fired at ceiling for bounce and diffusion. Some softwrea work to get it looking a little better.
Not really happy with it. Maybe I'll try again later....
Along with fabulous food, fabulous views and fabulous company, the cafe we had lunch at yesterday on our 'Famous Flickr Five+' outing, also had a lot of fabulous things to photograph . . . like this sea salt container which I thought looked brilliant with the complimentary blue and yellow decor behind it!
You can see all my 'What's Brewing' images here: 100 x What's Brewing: The 2016 edition.
Macro Monday: Member’s Choice—Herbs and Spices
Ordinary table salt macro (used extension tubes)
Thanks to Patrick and Cora for this suggestion!
Happy Macro Monday everyone! :)
Amb l'objectiu d'arribar al positiu fotografic completament manual, estic barrejant processos arcaics de fotografia, negatius i positius.
Una segona prova amb el mateix ambrotip (positiu de col·lodió en vidre), però ara com a negatiu d'una impressió amb paper salat. Teoricament no hauria de funcionar gaire bè, però no va pas malament.
Paper salat amb sal de Gerri.
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In order to arrive at the goal of the photographic paper print (positive) completely made without digital elements, I am mixing archaic photography processes, negative and positive.
Another one, with the same ambrotype (wet plate glass positive), this time as the negative with a salt print. Pas mal, considering that theoretically it should not print well with this even older process.
IN ENGLISH BELOW THE LINE
Primeres proves amb la més antiga de les tecnologies de positivat fotografic, el paper salat. De fet, es pot considerar anterior al daguerrotip, ja que les primeres proves de Henry Fox Talbot daten dels anys 1830, i fins i tot cap al 1790-97, Thomas Wedgwood feu imatges similars. Però fins el 1839 no sabien com fixar la imatge i aquesta es tornava completament negra en poc temps. Aleshores, Talbot trobà que el hiposulfit de sodi fixava la imatge de manera permanent.
El paper es sensibilitza primer amb sal comuna al 2%, i un cop sec, amb nitrat de plata al 8% o 12%. Un cop sec de nou, s'exposa al sol o lampada UV amb un negatiu per contacte, i un cop la imatge s'ha enfosquit suficientment, es renta amb aigua i acid citric i es fixa amb hiposulfit de sodi.
Aquest primer intent m'ha quedat una mica massa clar i tacat, segurament per anar massa de pressa i no deixar secar suficientment el paper, ni exposar-lo prou. Per cert, la sal que vaig fer servir és de Gerri de la Sal. Es per tant una foto amb una mica del Pallars.
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My first salt print trials. This traditional photography process is maybe the oldest one, even older in a way than the daguerreotype. That's because first trials were made by Thomas Wedgwood in 1790-97, and then Henry Fox Talbot in the 1830's, but they could not fix the images until using sodium thiosulfate (hypo).
The paper is sensibilized first with a 2% table salt bath, dried and then a 8 to 12% silver nitrate bath (a brush could also be used). This creates silver chloride in the paper. Once dry is then exposed with a contact negative to the sun (or UV lamp), and the image develops itself. Once developed, it's washed with water and citric acid and fixed with hypo.
For this salt print,I used Gerri de la Sal mountain salt, traditionaly harvested in the Catalan Pyrenees. The image was weak and stained because the paper was still damp when I exposed it, and then don't waited till it was dark enough.
TED: "Look wot I made today! Sum peenut butter cookies, an' they wuz ever so easy. Dad tried one jest now an' 'e sez there reely nice! P'raps I can take up bakin' durin' lockdown... "
*rummages in kitchen cupboards for inspiration*
Ted's Covid-19 diary
Found this very quick and easy recipe for peanut butter cookies online. It uses just four ingredients and no flour at all, and makes 16 delicious cookies. I have a feeling they won't last long...
Here's the recipe:
Ingredients:
200g peanut butter (crunchy or smooth)
175g golden caster sugar
1/4 tsp fine table salt (omit if using salted peanut butter)
1 large egg
Method:
Heat oven to 180 degrees (160 degrees fan oven) and line two large baking trays with baking parchment.
Measure peanut butter and sugar into a bowl. Add salt and mix well with a wooden spoon. Add the egg and mix again until the mixture forms a dough.
Break off 16 equally sized chunks of dough (about the size of a cherry tomato) and place, well spaced apart, on the trays. Press the centres down lightly with the back of a fork in a criss-cross pattern to squash them a little. The cookies can now be frozen for up to two months: when cooking from frozen add an extra 1-3 minutes to the cooking time.
Bake for 12 minutes until golden around the edges and paler in the centre. Cool for 10 minutes in the trays, then transfer to a cooling rack to finish cooling.
Will keep for up to 3 days in an airtight container.
A river of dried salt surrounds our jeep near Badwater in Death Valley National Park, the lowest place in North America and the hottest place on Earth. Taken on one of my many springtime Death Valley trips with old friends.
This is my most successful salt shot, and my most successful attempt at dark field illumination, or a variant of it.
First off, this is using my super macro setup with my 28mm lens (old Canon lens) flipped backward at the end of a bellows, on my Canon EOS50D. It's a bit cumbersome, but here I got some of my sharpest focus- enough so that I took 7 shots, and used those (even though a bit blurry still) to create a blurry, but more usable, super resolution shot in Photo Acute (2x the original resolution). From there, I reduced the picture to a bit more than 25% and sharpened it, to get 280x magnification. There is a lot of detail in these salt crystals- this is plain table salt, so you can see the scale if you go to maximum size.
Now for the darkfield part. Normally this is done with lenses to focus the source light on the subject, and partial obstruction of the light source. It is, however, named for the effect. I used two polarizers. The lower polarizer and upper polarizer were at right angles, blocking most of the light from below. The salt was in between them, resting on the glass of the lower polarizer. Let's say the light was polarized left/right by the lower polarizer. The upper polarizer, being oriented up/down, would block all that light.
However, the salt crystals scatter that left/right polarized light so that it's no longer polarized, and therefore, it leaks through the upper polarizer.
However, only the light passing through the salt is affected- the light that misses the salt is still polarized left/right, and hence blocked by the upper, up/down polarizer. That leaves just the salt visible against a see of black. Or dark grey, as the polarizers are not perfect.
Click on the photo twice to get amazing detail. Yes, that's a macro of a single grain of table salt.
Carole Nicholson and Bob Aldridge. From the 1951 edition of The Doe-Wah-Jack, Burlington High School's yearbook (p. 93).
View at DigitalNC: Burlington High School 1951 Yearbook
Digital Collection: North Carolina High School Yearbooks
Contributing Institution: Alamance County Public Libraries
Standard Rights Statement: Copyright Not Evaluated
Our friend, table salt, may form white, candid crusts all over the California desert, but deep in its heart, it really loves to crystallize into beautiful cubes.
The side of these cubes is approximately 5 mm, or 1/4 inch. These cubes were found at the edge of one of the pools portrayed in my three previous images. They can grow a little more but most of them are of this size. They will dissolve with the first rain.
Trona, California