Reply to thread

Message: <blockquote data-quote="okulo" data-source="post: 496935" data-attributes="member: 40687">I used to be a graphic designer and often had to make compromises when it came to placing clients' images in documents as they didn't grasp the arithmetic of print resolution (let alone colour space) - to them, if it looked good on screen, it should look good in print.As a result, I have had to do things which might be considered sacrilegious; I specifically remember having to use a whole series of photos of crockery which had been shot on a 640x480 mobile phone camera and creatively resized them to get 100dpi print resolution in a glossy catalogue (300dpi had always been my target) and everybody apart from the studio, printer and myself seemed happy with the result but I made it clear to the client that I would never do it again.I mention this because a printed catalogue will probably be viewed at distances between one and two feet (very approximately) and that a 6000x4000 image will, when printed at 10' x 8' (by dint of having to be cropped along the long edge) result in a pre-print resolution of just under 42dpi.However, nobody is going to be looking at it as closely as they would a catalogue - I imagine that it would be necessary to stand over eight feet away to see the whole image within the normal field of vision. I have a 720p projector with a screen approximately six feet wide and sitting eight feet away, I cannot see the projected pixels and they appear on screen at about 20 pixels per inch.The final interpolated print resolution will be determined by the print process anyway, so rather than seeing dots as one might if looking at an advertising hoarding or billboard from a couple of feet away, one would probably see a slight blurriness.</blockquote>

Verification