Nov 18, 2010, 16:12
Who better to seek advice from for preserving old photographs than the Smithsonian Institute? Here's an article which answers a few questions on how to preserve your old keepsakes.
http://www.theatlantic.com/technology/ar...ves/66425/
Of great interest was the part where they talk about extracting photos that may have become stuck to albums or stuck together, or have become damaged through mould.
They also give advice on scanning photos:
http://www.theatlantic.com/technology/ar...ves/66425/
Of great interest was the part where they talk about extracting photos that may have become stuck to albums or stuck together, or have become damaged through mould.
They also give advice on scanning photos:
Quote:For images we use no less than 600 ppi to yield a minimum of 6,000 pixels along the long axis, as part of our best practices. For example, images more than 10 inches in length should have the resolution set to 600 ppi. Color is saved as 24-bit TIFF and grayscale is saved as 8-bit TIFF. TIFF is a lossless format, while JPEG uses lossy compression, meaning a loss in quality when edited. These TIFFs will create large files and depending on your needs, a minimum of 300 ppi could work. Documents can be saved as PDF/A (A for Archival) or PDF. Again, 300 ppi should result in a good quality file."What have your experiences been in preserving old photos?
