Re: My opinion and thoughts about Fujifilm X-Trans V 40Mpix sensor
I think all here would benefit from buying and reading Jeff Schewe’s book, “The Digital Print.” There’s so much apparent confusion here as regards digital prints and printers, ppi, dpi, any given printer’s native resolution and how that interacts with what you “send” to that printer in ppi when printing - that it would be impossible in a post or two to tackle what seems to me to be some significant gaps in understanding how it all works.
Just a couple of points for the record. Modern digital printers are not RGB devices, they’re CMYK devices and there’s a conversion process that happens going from an RGB color space when sending data to the printer. Each printer brand/model has a “native resolution” for it’s print head, typically either 300 or 360. It’s best practice to send an image to the printer at native print head resolution. (On some printers, when the native resolution of the image at any given size would be much larger than 300 or 360, due to large file size, there can be improvement in the print quality by sending 600 or 720 to the printer with concomitant driver settings.) What the printer lays down in dpi isn’t as simple as it appears from the discussion in this thread. Variable size “dots” (in tiny amounts at the picoliter scale) combine to make colors and lay down the image on paper. The sharpness of the print on paper depends on not only on the data “in the image” but also the type of paper, its receiver coating formulation and the amount of “spread” of the ink when it hits he paper (dot gain). Some print utilities can do upsampling or down sampling “on the fly” to send the printer an image at native print head resolution, and do a darn fine job of it.
Feb 07, 2024 at 01:39 AM
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