Gawain WeaverGawain Weaver: Conservation and Consulting Services in the Care of Historic and Fine Art Photographs


We provide conservation treatment and consulting services to museums, galleries, collectors, historical societies, libraries, and individuals. Our services range from the treatment of individual fine art prints, to the care of large print and negative collections.

We also offer a range of educational opportunities and products, including workshops, both online and in-person, historic photographic sample sets, and XRF analysis and rentals.

New & Upcoming

August 15, 2014

Photographic Process Controlled Vocabulary Now Available

A new list of controlled vocabulary for use in the description and cataloging of photographs is now available as a free download. It was developed as part of an IMLS-funded survey of the photograph collection at the Los Angeles County Museum of Art. Further information can be found after the jump and on the Photographic Processes page.

Controlled Vocabulary screenshot


July 21, 2013

Real-world photo restoration in Adobe Photoshop CC Classroom in a Book

The Adobe “Classroom in a Book” is the official training workbook from Adobe Systems. Made for each of Adobe’s flagship products, the most recent workbook for the new CC edition of Adobe Photoshop features Gawain Weaver Art Conservation with a comparison between the tools and techniques of a photograph conservator and their digital counterparts in the Photoshop software. See the full sidebar after the jump.


April 10, 2013

Coming Soon: 19th Century Photographic Print Process ID chart

We will be releasing the first version of our new 19th Century Photographic Print Process ID chart in the near future. The link for a PDF version of the chart will go out via our newsletter as soon as we have finalized the design. You can sign-up here for the newsletter. Process ID charts dealing with other categories of photographic materials such as photomechanical, digital, and color will be released as they are ready.


March 22, 2013

Vinegar Syndrome and Emulsion Stripping of Acetate Negatives

When photographic film with a cellulose acetate support begins to deteriorate we say it has vinegar syndrome because it forms acetic acid (among other deterioration byproducts) and smells like vinegar. The acetate support also shrinks and becomes brittle eventually pulling away from the gelatin image layer in patterns often called channeling. The plasticizer in the acetate support comes to the surface and forms small bubbles between the acetate support and the gelatin image layer. Find out how it can be fixed after the jump.


February 01, 2013

Advanced Photo Conservation Course at Huntington Library


An advanced-level photograph conservation workshop will be offered for the first time for book and paper conservators October 21-24, 2013. It will be hosted by the conservation department at the Huntington Library, Art Collections, and Botanical Gardens in San Marino, CA, and taught by Gawain Weaver and Jennifer Olsen