Anna Atkins, Photographs of British Algae: Cyanotyp, 1843-53
Rauschenberg working in his studio in 1951
CYANOTYPE
Cyanotype is a photographic printing process that produces a cyan-blue print. Engineers used the process well into the 20th century as a simple and low-cost process to produce copies of drawings, referred to as blueprints. The process uses two chemicals: ammonium iron(III) citrate and potassium ferricyanide.
The cyanotype process is simple. It can be done easily in a few steps:
Mixing chemicals
The cyanotype is made up of two simple solutions.
Potassium ferricyanide and Ferric ammonium citrate (green) are mixed with water separately.
The two solutions are then blended together in equal parts.
Preparing the canvas (recommend Arches watercolor papers 140 lbs)
Paper, card, textiles or any other naturally absorbent material is coated with the solution and dried in the dark.
Printing the cyanotype
Objects or negatives are placed on the material to make a print. The cyanotype is printed using UV light, such as the sun, a light box or a UV lamp.
Processing and drying
After exposure the material is processed by simply rinsing it in water. A white print emerges on a blue background.
Lumen prints are made by placing objects directly onto photo paper and exposing them to UV light. Moisture, temperature, time, type of paper, and amount of UV have an effect on the color mood of the images. There is an immediacy and magic to this very simple process, and it mirrors some of the first photographic images that were ever produced. Many of these images were scanned before the print was fixed, a process which makes the image light-fast but bleaches some of the vibrant colors. They capture a specific, transient subject and are themselves objects in constant change.
Take a black/white photo paper, put a piece of plant, flower or something else organic on top and finish off with a piece of glass. Leave in the sun for half an hour or why not when you go to work and you’ve got something to look forward to when you come home.
Bring your photo-sandwich inside and rinse of any organic bits, put in fixer. You will find the image changing rapidly in the fixer and usually get a pleasant surprise when you look at it in normal light. Rinse and you should have an archival image as long as you’ve taken care to not leave any organic residue that would make the image deteriorate eventually. Sounds simple, and it is, but there’s a lot more you can do with it.
Composition is important. You will benefit from trimming your plants to make out more detail.
You can also experiment with putting stuff on the glass, partially coat it with paint, foodstuffs or place items on top, like a shadow-gram. Use tape at the edges to create a border.
Wet the paper before you put the plant on and you will get a darker image with more detail in the subject.
Or just spray the plant with water before you put it on the paper but make sure you get it in the right position straight away because the damp areas will show in the final picture, unless that’s what you are after.
It is a technique that puts you in the hands of chance and the fact that every image will be unique. So many factors affect the final image like air humidity, uv-factor, the subject’
s humidity, temperature etc. But you can alter the exposure in some ways dodging or burning in parts of the image with a magnifying glass, although it will take a bit longer than with your usual darkroom print.
Jerry Burchfield working with his assistant in Amazon, Brazil
PHOTOGRAM
A photogram is a photographic image made without a camera by placing objects directly onto the surface of a light-sensitive material such as photographic paper and then exposing it to light. The usual result is a negative shadow image that shows variations in tone that depends upon the transparency of the objects used. Areas of the paper that have received no light appear white; those exposed through transparent or semi-transparent objects appear grey.
The technique is sometimes called cameraless photography. It was used by artists Man Ray, Laszlo Moholy-Nagy, Christian Schad, Imogen Cunningham, and Pablo Picasso.
$10 – $20AIA Members & Students | General Admission
Description:
This summer the AIA Long Beach/South Bay will be hosting its 3rd biennial Architectural Photography Competition that celebrates the built environment and architectural design. Join us in our workshop webinar to improve your photography skills and learn how the application of creating high-quality images easily translates to marketing uses for architects and designers to create striking proposals, eye catching social media posts, and impactful design award submissions. Taught by Architectural Photographer Carlos R. Hernandez, AIA. All photography experience levels welcome.
Learning Objectives:
Attendees will learn about Architectural photography sub genres and trends.
Attendees will learn about recommended tools and equipment.
Attendees will learn about proper planning and preparation, shot lists, and defining asset objectives.
Attendees will learn about lighting: quality of light, artificial light, natural light, solar studies, shoot times including the ‘golden hour’, and how each can affect the photograph of a structure.
Attendees will learn about photography composition, perspective, and styling that will best present the exterior and interior of a structure.
Attendees will learn about proper post processing: basics, workflow, editing software, and lens correction.
This workshop webinar is complemented with our Photography Walkabout on Sat., Feb. 26, 3 – 6 pm at SteelCraft Bellflower to experience hands-on exterior and interior assignments of one-point and two-point perspective, hero shot, vignette/details, and composition considerations.
Student attendees (high school or college) may enter the AIA LBSB’s Architectural Photography Competition in the summer of 2022 at no cost.
1.5 LUs workshop
3.0 LUs walkabout
About the Speaker:
Carlos R. Hernandez, AIA, LEED AP, CDT is a Southern California based Architectural photographer and concurrently works at RDC-S111 as a Director of Technical Management. He serves on the Board of Directors of the American Institute of Architects, Long Beach/South Bay Chapter.