Ravines, P., K.G. Baum, N.A. Cox, S. Welch, and M. Helfuera. Multimodality Imaging of Daguerreotypes and Development of a Registration Program for image Evaluation. Journal of the American Institute for Conservation 53(1):19–32.
In the article listed above, published in February 2014, a number of references and acknowledgments were mistakenly omitted from the published article. The correct acknowledgments are listed below, with the corrections shown in bold.
Section 2.1, 3rd paragraph, p. 21.
‘… The luminous flux density profile is shown in figure 1, and it reveals that no UV is emitted; visible radiation beings at 402 nm followed by a single strong green peak centered at about 545 nm with a shoulder at about 55 nm, a yellow doublet with peaks at about 580 and 590 nm, and a red doublet with a central shoulder on the higher wavelength peak at about 630 nm, another shoulder at 620 nm, and the lower peak at about 610 nm (Wiegandt 2009-2010). There are additional …’
Section 2.1, last paragraph, p. 22.
‘… Exposure during scanning with the 1000XL scanner was found to be at 13,455 lux for a period of 1 second. This level was determined through an extrapolation from an Elsec 774 light meter (Wiegandt 2009-2010). The recommended …. In this case, the scanner exposure equated to approximately 0.03% of the recommended cumulative annual light level, and was deemed a low risk (Wiegandt 2009-2010).
Fig. 1 caption, p. 21.
The luminous flux density profile of the cold cathode fluorescent lamp used in the Epson Expression 10000 XL flat bed color scanner. Yellow shaded area indicates the visible region of the spectrum, where the lamp primarily emits. Credit R. Wiegandt.
Fig. 2 caption, p. 22.
Modified scanner set-up used in imaging daguerreotypes at George Eastman House. Whole plate daguerreotype resting on a lab jack is slid under the scanner and raised to just below the previous location of the removed glass plate. © 2010 George Eastman House International Museum of Photography and Film
Fig. 3 caption, p. 22.
Axial specular illumination set-up used to capture the negative image of the daguerreotype. © 2010 George Eastman House International Museum of Photography and Film
Fig. 4 caption, p. 23.
Light path from source to camera of axial specular illumination set-up. © 2010 George Eastman House International Museum of Photography and Film
Fig. 5 caption, p. 24.
Selecting “moving” and “target” images of a quarter plate daguerreotype (size: 4.25 × 3.25 in.; 10.8 × 8.3 cm) depicting a young seated woman wearing a striped dress, ca. 1845-50, George Eastman House (GEH) accession number 1974:0193:0409. (There is a considerable amount of whitish haze or corrosion on the lower half of the plate and dark brown tarnish along all borders.) © 2010 George Eastman House International Museum of Photography and Film
Fig. 7 caption, p. 25.
Selecting control point pairs from a UVA image (left panel) and a RGB image (right panel) of the one-sixth plate daguerreotype (size: 3.25 × 2.25 in; 8.3 × 7 cm) of a young woman wearing a checkered dress, ca. 1850, GEH accession number 1974:0193:0305. © 2010 George Eastman House International Museum of Photography and Film
Fig. 8 caption, p. 25.
Example of an image capture of a whole plate daguerreotype (size: 8.5 × 6.5 in.; 21.6 × 16.5 cm) of Boston poetess Caroline Sturgis Tappan (1819-1888), GEH accession number 1974:0193:0015, using the modified scanner set-up including a test target. © 2010 George Eastman House International Museum of Photography and Film
Fig. 9 caption, p. 26.
Example of a negative image of a whole plate daguerreotype of Caroline Sturgis Tappan captured with the axial specular set-up. © 2010 George Eastman House International Museum of Photography and Film
Fig. 10 caption, p. 27.
Examples of image captures of a whole plate daguerreotype of Caroline Sturgis Tappan for HDR processing. Capture conditions/settings: ISO 100 and f8 for all three images: (a) overexposed at 1.6 s, (b) 0.5 s, and (c) underexposed at 1/15 s, (d) leveling histogram to reduce contrast of image “b” using Photoshop CS3, and (e) tone mapping of a HDR image composed of “a,” “b,” and “c” using Photomatix. © 2010 George Eastman House International Museum of Photography and Film
Fig. 11 caption, p. 28.
Example of an image capture of a whole plate daguerreotype of Caroline Sturgis Tappan captured with the UVA set-up. © 2010 George Eastman House International Museum of Photography and Film
Fig. 12 caption, p. 29.
Small one-sixth daguerreotype plate of a young woman wearing a checkered dress from figure 5: (a) RGB image showing some whitish corrosion in the lower right corner area that is marked with a white circle; (b) UVA image showing a greater area of whitish corrosion delineated by a tide line-like boundary in the lower right corner area (marked with a white circle), and (c) RGB as base image over layered with a UVA image at 50% opacity/transparency accentuating the whitish corrosion areas marked with a white circle), (d) RGB close up image of the lower right corner area showing the whitish corrosion and two arrows point to areas where whitish corrosion is not observed, (e) UVA close-up image of the lower right corner area showing an increase in the area of whitish corrosion delineated by a tide line-like boundary denoted by two small white arrows, (f) RGB close-up base image over layered with a close-up UVA image at 50% opacity/transparency accentuating the whitish corrosion areas marked by two small white arrows. © 2010 George Eastman House International Museum of Photography and Film
Acknowledgments
‘The authors are thankful for the generous support of the National Endowment for the Arts (NEA) Save America's Treasures grant entitled ‘To support conservation of the Southworth and Hawes Daguerreotype Collection”, number 08-7700-7018. The authors also acknowledge The Andrew W. Mellon Foundation for support of the Daguerreotype Documentation Pilot Project 208-2010 administered by the Museum of Fine Arts, Boston. …”
Additional Reference
Wiegandt, R. 2009-2010. Personal communications. George Eastman House International Museum of Photography and Film.