Rich O Posted March 4, 2015 Share Posted March 4, 2015 (edited) I know this comes up a lot and I have searched, but I have to render for a sign at street level (that is, eye level, on a fence. Not up high) which will be approx 3m x 2m (about 118 x 78 inches). The client insists on having it at 150 dpi...by my calculations that means a 17,700 x 11,700 pixel render. is this correct? Also, is this insanely high-def? Like, military-planning-map-on-wall-in-Pentagon kind of high resolution? Edited March 4, 2015 by Richard7666 Link to comment Share on other sites More sharing options...
philippelamoureux Posted March 4, 2015 Share Posted March 4, 2015 Try this little tool! Link to comment Share on other sites More sharing options...
Scott Schroeder Posted March 4, 2015 Share Posted March 4, 2015 Check with your printer if you can, rarely do they print at that DPI for that size. Your typical print will be 15-50 dpi. Even if they do print at 150, you can still get a pretty high quality print rendering at 1/2 the size you think you need. Max has a built in render size calculator that is often overlooked. Render Menu -> Print Size Assistant. Link to comment Share on other sites More sharing options...
Chris MacDonald Posted March 4, 2015 Share Posted March 4, 2015 Agreed with Scott. 9 times out of 10 printers will ask for 300DPI prints even if it's for a massive billboard such as the one you're doing - it's nonsense. You can render out at ~50 to ~75 DPI and simply scale it up. Pixels per inch is not equal to dots per inch. Common misconception. Link to comment Share on other sites More sharing options...
Rich O Posted March 4, 2015 Author Share Posted March 4, 2015 (edited) Ah quite right, mine was in PPI (I used Photoshop to calculate it) Though having said that... Try this little tool! ...This gives the same resolution as my Photoshop calculation, 17k x 11k. The question is, does each "dot" printed correspond directly to each pixel rendered? Edited March 4, 2015 by Richard7666 Link to comment Share on other sites More sharing options...
deadkaiser Posted March 4, 2015 Share Posted March 4, 2015 does it matter? for a street sign 1080P is more than enough it not like you can read an essay while driving past. (and the answer is no i think) Link to comment Share on other sites More sharing options...
Francisco Penaloza Posted March 4, 2015 Share Posted March 4, 2015 The question is, does each "dot" printed correspond directly to each pixel rendered? no, that's not correct. Read this article it will answer all your questions http://99designs.com/designer-blog/2013/02/26/ppi-vs-dpi-whats-the-difference/ and printers always ask for 300 DPI because their don't want to get the blame of a blurry print Link to comment Share on other sites More sharing options...
Rich O Posted March 4, 2015 Author Share Posted March 4, 2015 It's a sign at street level, ie on the wall/fence or something that people will be able to walk right up to I believe. Sorry wasn't clear on that, edited my post now Link to comment Share on other sites More sharing options...
Smile of Fury Posted March 4, 2015 Share Posted March 4, 2015 I always like using this pixel density vs. viewing distance calculator. http://isthisretina.com/ Link to comment Share on other sites More sharing options...
Stephen Thomas Posted March 6, 2015 Share Posted March 6, 2015 That's a great link Ben! Worth also considering what is the minimum distance that people will be able to take in a 3m x 2m image as well. I can stick my eye up against a magazine, but that doesn't mean the image has to hold up at that distance Link to comment Share on other sites More sharing options...
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