![]() ![]() I've been told by at least two editors that 400 ppi is better, so this means that a 12-inch image should be 4800 pixels wide. (see page 60 of Technical Guidelines for Digitizing Cultural Heritage Materials, in the Links section below)Ī good overall goal is to produce images that can be published to paper, meaning that the image needs to be 12 inches wide and at least 300 ppi along the wide dimension, or 3600 pixels wide. National Archives recommends 4000 pixels wide for 35mm slides and film up to 4x5 inches 6000 pixels wide for film 4x5 inches, up to 8x10 inches and 8000 pixels wide for film 8x10 inches and larger. How Wide?įor lack of a recognized standard, the goal is to follow (and improve on, if feasible) the general guidelines of the National Archives and the Federal Agencies Digitization Guidelines Initiative to produce digital images that are 5000 pixels along their wide dimension, regardless of resolution. It may be wrong to say DPI when talking digital stuff, but the term is universal and understandable. PPI is pixels per inch, and is the standard reference for digital images. DPI and PPIĭPI is dots per inch, and is the standard reference for printing to paper. Later, you can edit it or resize it for whatever purpose you need, then save it as a compressed JPG file. But I have gotten in the habit of simply washing my hands before handling negatives.Īlways, always, save the scanned photo as an uncompressed TIF file. If possible, wear white gloves, either cotton or other fabric. Buy both a small brush and a large brush, as they will come in handy to physically remove the tough bits of dust. While you are in one of these stores, head on over to the makeup section and pick up a soft-bristled makeup brush. In my area that includes Walmart, Costco, and the local Smith's Market Place. I have gone through many years of painful learning experiences, simply not knowing what to do or how to do it, and I now shutter when I see an image that I produced more than 8-10 years ago.įirst action - always, always - is to clean the slide or negative with "canned" air, which is a pressurized can of air the is readily available at most stores. I have been asked to share how I produce photo images for books, magazine articles, and online photo albums. This page was last updated on July 17, 2022.
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