CABARET of SPIRITS Atelier ... BLOG VERSION

CABARET of SPIRITS Atelier ... BLOG VERSION
...Photographs should be protected from extended exposure to intense light sources. Limit exhibition times, control light exposure, and monitor the condition of the photographs carefully. Prolonged or permanent display of photographs is not recommended. Use unbuffered ragboard mats, and frame photographs with archivally sound materials. Use ultraviolet-filtering plexiglass to help protect the photographs during light exposure. Reproduce vulnerable or unique images and display the duplicate image; in this way, the original photograph can be properly stored and preserved.

Disaster preparedness begins by evaluating the storage location and the potential for damage in the event of a fire, flood, or other emergency. It is important to create a disaster preparedness plan that addresses the specific needs of the collection before a disaster occurs.

The location and manner in which photographs are housed can be the first line of defense. Identify photographic materials that are at higher risk of damage or loss. Remove all potentially damaging materials such as paper clips and poor-quality enclosures. Store negatives and prints in separate locations to increase the possibility of an image surviving a catastrophe. If a disaster occurs, protect the collection from damage by covering it with plastic sheeting and/or removing it from the affected area. If using plastic, make sure not to trap in moisture as this could lead to mold growth. Evaluate the situation and document the damage that has occurred. Contact a conservator as soon as possible for assistance and advice on the recovery and repair of damaged materials.

PS .If your photograph requires special attention or you are unsure about how to protect it, you should contact a conservator.To search for a conservator near you.






Cabaret of Spirits ATELIER

Cabaret of Spirits ATELIER

Treatment Options for Photographic Materials may include

mold removal
surface cleaning
stain reduction (only if possible and safe to do so)
tape and adhesive removal
separation from poor quality mounts
consolidation of cracked or flaking emulsion
mending tears or breaks
conservation of cased photographs and case repair
daguerreotypes
ambrotypes
ferrotypes
electro-cleansing of tarnished daguerreotypes
rehousing options
four-flap enclosures
clamshell boxes
polyester sleeves
encapsulation
conservation framing

PRESERVING & PROTECTING PHOTOGRAPHS

PRESERVING & PROTECTING PHOTOGRAPHS
Hundreds of millions of photographs have been lost over the years to natural disasters, wars, and the age-old urge to clean house. So there is something special about every old photograph that's survived. Someone decided to make it... someone else, to buy it... and a lot of someones decided to keep it over the years. Whether you're the caretaker of a treasured family album or a collector who has searched out the classics of photography, it's important to preserve and protect the images you value. Fortunately, there is new information about what to do and what to avoid. And there are specialized products available to help.

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Saturday, 27 February 2016

An Early Daguerreotype Portrait Studio (1842)


An early daguerreotype studio, as depicted in a woodcut by George Cruikshank in 1842. This illustration shows the interior of Richard Beard's daguerreotype portrait studio at the Royal Polytechnic Institution in London's Regent Street, the first professional photographic portrait studio in England, which opened in 1841. In this early period, Beard employed Wolcott's Mirror Camera, which used a concave mirror instead of a lens.


 a. A daguerreotype studio was often situated at the very top of a building, which had a glass roof to let in as much light as possible. 


b.The subject sat on a posing chair placed on a raised platform, which could be rotated to face the light. The sitter's head is held still by a clamp.


The stages of making a daguerreotype portrait



1. An assistant polishes a silver-coated copper plate with a long buffer until the surface is highly reflective (y). c.The highly polished plate is then taken into the darkroom, where it is sensitized with chemicals ( e.g. chloride of iodine, chloride of bromine ).



2.The operator places the sensitized plate into a camera placed on a high shelf (z). When the sitter is ready the operator removes  the camera cover and times the required exposure with a watch. [ In this illustration, the operator is using Wolcott's Mirror Camera, which was fitted with a curved mirror instead of a lens ].


3. The exposed plate is returned to the darkroom where the photographic image on the silvered plate is "brought out" with the fumes from heated mercury (d). The photographic image is "fixed" by bathing the plate in hyposulphate of soda. The photographic plate with the daguerreotype image is then washed in distilled water (e)and dried.


4. Finally, the finished daguerreotype portrait is covered by a sheet of protective glass and is either mounted in a decorative frame or presented in a leather-bound case and offered to the customer for close inspection. Early daguerreotype portraits were very small and to appreciate the fine detail these customers are using a magnifying glass.


Daguerreotype Exposure Times1839  Daguerreotype 
half-plate & whole plate    15-30 minutes1841  Daguerreotype ninth-plate & sixth- plate    20 sec - 90 seconds1842  Daguerreotype ninth-plate & sixth- plate    10 sec - 60 seconds