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El conjunt dels objectius tipus Petzval, tots de bronze. De moment només he pogut fer servir el Derogy, però espero aviat poder emprar el Voigtlander, el Lerebours i el Dallmeyer, tant per plaques de 13x18 com de 18x24.
Es tracta d'un ambrotip en vidre fosc, format 4x5 polzades, realitzat amb una Graflex Speed Graphic, fabricada entorn 1950; objectiu Kodak Anastigmat f4.5; col·lodió Mamuth Liliana, revelat amb Mamuth MD8. He de dir que no estic gens content amb aquest col·lodió, m'ha donat força problemes.
Les plaques de col·lodió es realitzen al moment, cobrint una placa de vidre o planxa metal·lica negra amb col·lodió i sals de cadmi i/o potassi, sensibilitzat amb nitrat de plata. Aleshores s'ha de fer la fotografia i revelar-la en uns 5 minuts, abans no s'assequi la emulsió. És un dels processos fotogràfics més antics del món, inventat el 1851, i que dominà fins el 1880. Però ara ha resorgit, ja que les imatges, molt treballades, que dona són úniques, màgiques i i irrepetibles.
ca.wikipedia.org/wiki/Col%C2%B7lodi%C3%B3_humit
Aquí en teniu una demostració de com es fan:
www.youtube.com/watch?v=P1ZH4RTaM60
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Those are my brass oldies, all petzvals. By now I could only use the smaller Derogy, but I'm preparing lens boards et al. to use at least the Voigtländer, Lerebours and Dallmeyer.
Ambrotype in 4x5 format, made with a Graflex Pacemaker Speed Graphic; Kodak Anastigmat f4.5 lens; Mamuth Liliana collodion, developed with Mamuth MD8. I'm not happy at all with this Liliana collodion, has given a lot of problems, like cloudly lines & peeling, even with the developer!
The collodion plates are made covering a glass plate or black metal plate with collodion and salts of cadmium and / or potassium, sensitized with silver nitrate. Then you have to take the photo and reveal it in about 5 minutes, before the emulsion dries. It is one of the oldest photographic processes in the World, invented in 1851, and which dominated photography until 1880. But now it has resurfaced, as the images, very elaborate to create, that it gives are unique, razor sharp, magical and unrepeatable.
en.wikipedia.org/wiki/Collodion_process
intrepidcamera.co.uk/blog/rikard-osterlund-guide-to-wet-p...
Here's a nice video of the wet plate collodion process:
My first plate from Treiste, in the East of the country, surrounded by Slovenia! A 1994 plate!
Distance from home: 615 km.
Some days my daughter lets me photograph while she nicely sleeps in her bed. Today was like this. I had a few hours to spend with my camera and my new lens :) (85 mm f1.4 G)
Shot with a Voigtländer Perkeo II
80mm f/3.5 Color-Skopar lens
Kodak Gold 200 film
Shot at EI 200
Developed by The Darkroom
Scanned on a Coolscan 9000ED
1909 Seneca 8 5x7, Seneca Triple Convertible Lens (at 8"), New Guy collodion (1.5 weeks old), Copper Sulfate developer, alumitype
f/32, 6 seconds
After 2 test plates and still getting ridiculous fog, I figured the copper developer is just too strong so I dumped it and made new stuff from some B&S concentrate I brought with me. Unfortunately that didn't help either...
I made this one to send out as a doll quilt for the DQS8, but at the end it was to big. I made this one instead www.flickr.com/photos/lindakl/4387207676/in/set-721576235... to send to Mari.
So I finished this one a few weeks ago and I like it very much! The fabric's are from Sandi Henderson, Meadowsweet, I think that the fabric's give you a great summer feeling!
Someone thought they may be worth somethign, but I'm not so sure. We eat of them and bosh them through the dishwasher and all sorts.
In March 2019 my Instagram account "betweenbrickwalls" reached 20 k followers. I celebrated this milestone by building 20 k with my favourite parts - 1x2 plates!
Wet plate ambrotype over clean glass. Rodenstock sironar 150 mm. 13x18 cm (5x7"). New Guy. 28/07. H 17:30, Rimini. EV100 13,5. f/16 7 sec
I see many plates from Kosovo in this area of the city, always from the same company (Axhari Tours), there's probably a regular line from Kosovo to Geneva!
Distance from home: 1855 km.
I'm getting a more smooth surface on the plates now, but I still have to deal with too many small pinholes and some bubbles in the emulsion..
The contrast becomes very high on them, I will try a different developer the next time.
This one is scanned directly from the glass plate with some contrast correction and the toning is added in Photoshop. Everything else is in-camera.
This is fun to do :-)
wet plate negative. 5X7”
New Guy’s recipe for negatives. Developed in ferrous sulphate. Fixed in Hypo.
Intensified with iodine and redeveloped with pyro
The positive image is just inverted in phostoshop
Spartan cab leaders on the former Nickel Plate main somewhere east of Fort Wayne, Indiana. The precise location escapes me now.
Plates to Selby's Illustrations of British ornithology
Edinburgh :Archibald Constable & Co. ;[1819]-1834.
Title: Seder plate
Description: Seder plate consisting of a flat copper colored ellipse inscribed with the names of the ceremonial foods in Hebrew, and three white legs inscribed in openwork respectively, inscription: "The bread of affliction"
Creator: David, Ismar, 1910-1996
Medium: copper, etched; white metal
Persistent URL: digital.cjh.org/R/?func=dbin-jump-full&object_id=412524
Repository: Yeshiva University Museum, 15 West 16th Street, New York, NY 10011
Accession Number: 1997.547
Rights Information: No known copyright restrictions; may be subject to third party rights. For more copyright information, click here.
See more information about this image and others at CJH Museum Collections.