I agree with developing a workflow that delivers images ready for specific output. But I recommend that the output workflow be considered as derivative file production, not capture.
There are a number of reasons for capturing master files at high resolution rather than trying to "fly through a production cycle....." and ending up with small jpegs only. Here are a few: -Less handling of materials; -Less labor (scanning takes much more time than derivative file production, which can be automated); -Downsizing files, or reducing bit depth, results in higher quality than going in the other direction. This is often called: "scan once, use many." Systems (scanners, computers, software)have gotten so fast and inexpensive that it is now practical,in most cases,to digitize at preservation quality. This better, faster, cheaper paradigm was predicted by Moore's Law and it continues today. It also applies to storage, where hard drives have more capacity, are smaller and cheaper. This is why mass digitization projects like Google's are happening now. Just my fifty cents worth.... Howard Brainen Digital Imaging Consultant TWO CAT DIGITAL 14719 Catalina Street San Leandro, CA 94577 510-940-2670 ext 201 FAX 510-940-2632 www.twocatdigital.com blog: www.digitalenabler.blogspot.com -----Original Message----- From: mcn-l-bounces at mcn.edu [mailto:[email protected]] On Behalf Of Jeff Evans Sent: Wednesday, November 22, 2006 4:31 PM To: Museum Computer Network Listserv Subject: Re: [MCN-L] Clarifying Interpolating vs. Scaling Hi - A lot of good info has gone out today regarding this. A good consideration is to deliver images ready for press. This will push you toward files that are 8000 pixels for a full page illustration. Maybe 6000 for a half page image. Mid range cameras and scanners may have trouble creating images that large. Also you *may* want to capture your files as 16-bit RGB tif, 600 dpi. Everything for press gets delivered at 300 dpi CMYK 8-bit however. Master files are great but- I am also always a fan of capturing files for a certain use. A photo project (such as Julie's) may be printed in duotone for example, so the workflow should be pointed at that. Or a web project can fly thru a production cycle if jpegs are all that are needed. JEFF Jeffrey Evans Digital Imaging Specialist Princeton University Art Museum 609.258.8579 > Just to be clear, interpolating is not the same as scaling. > Wanting a 5x7 photo or document to be 200% its size when scanning > is scaling. Having a completed 5x7 scan at 300ppi and then making > the file larger is interpolating. > > Mike Rippy > IMA Photographer > mrippy at ima.museum > (317)920-2662 ext.191 > > IMA > 4000 Michigan Road > Indianapolis, IN, USA 46208-3326 > www.ima.museum > _______________________________________________ > You are currently subscribed to mcn-l, the listserv of the Museum > Computer Network (http://www.mcn.edu) > > To post to this list, send messages to: mcn-l at mcn.edu > > To unsubscribe or change mcn-l delivery options visit: > http://toronto.mediatrope.com/mailman/listinfo/mcn-l _______________________________________________ You are currently subscribed to mcn-l, the listserv of the Museum Computer Network (http://www.mcn.edu) To post to this list, send messages to: mcn-l at mcn.edu To unsubscribe or change mcn-l delivery options visit: http://toronto.mediatrope.com/mailman/listinfo/mcn-l
