On mardi 23 janvier 2024 23:52:38 CET Bruce Williams wrote: > Are you submitting a digital file, or a physical print? > If it's a digital file, I'd avoid that competition, because the organisers > don't even know what they're asking for! > Let's take a random example: > A digital file from a 24mp sensor is (roughly speaking) 6000 pixels x 4000 > pixels. > This file can be said to be 83.3 inches x 55.5 inches at 72 ppi. > Or it can be referred to as being 20 inches by 13.3 inches at 300 ppi. > So, unless the organisers have specified a PRINT SIZE @ 72 ppi, they have > no idea of what they are on about. > > > ---------- Forwarded message --------- > From: Andrew Greig <and...@algphoto.com.au> > > Hi > I have recently decided to jump into photographic competition, and one > of the requirements for submission is to adjust my file to 72 PPI what > would be the best settings for export please? >
And even if they require a physical print, I'd hesitate: "normal" printing resolution is about 300 DPI or higher. 72 DPI is low even for screen display (standard there is 96 DPI). As to darktable export settings: go to the export module, and select for "set size" either "in cm" or "in inch". That will give you the option to set a size in cm (or inch), and a DPI, and will display the resulting size in pixels. Note that a file cannot have a resolution (in DPI), it's just a bunch of pixel data. Until you are displaying or printing, any notion of resolution is irrelevant. And for a screen, its size in pixels is fixed (and usually known), so you don't need (or want) the DPI here either. Remco ____________________________________________________________________________ darktable user mailing list to unsubscribe send a mail to darktable-user+unsubscr...@lists.darktable.org
