Image Files

Image Files

Images are saved as uncompressed TIFF using the long length as 29.7cm which produces an A4 sized image TIFF except where the item is very large (such as a map) where the long length is 41.0cm or A3 sized.

We use Adobe Lightroom to manage collections and export files into the correct filename and format.

Colour or black and white prints: 16-bit RGB 300ppi to 1200ppi according to size (the smaller the object, the higher the ppi).

Negatives: 16-bit RGB 300ppi to 2400ppi according to size.

Text: 8-bit greyscale 400ppi.

Coloured manuscripts: 16-bit RGB 400ppi.

Maps: 16-bit RGB 400ppi.

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