I had the good fortune to work with one of the pictures. It had darkened quite a bit so I knew I had to compensate when working with it. Like any restoration you do NOT work on the original. A Daguerreotype has a soft surface (behind glass) that can easily be damaged so wiping off any marks or dust was not an option. Digital had not arrived in any great capacity yet so I took my camera and made a Black & White negative.
My Plan was
- Overexpose to compensate for going dark.
- Add contrast to bring back some detail.
- Enlarge to a good size working print. (11X14)
- Get a decent small print for an end result
I started from this.
Over 500 hours later I was looking quite a bit better but not near complete. Work with a brush came to an end and nothing further was done that way.
Now that we have digital...work became easier and much faster. Final results below
Adding a bit of color gives a bit of life back to the frame.