Cruisers & Sailing Forums - View Single Post

hellosailor · 18-07-2006, 15:33

Ah, outside the US charts are usually government property and cherished as valuable crown property. None of this "we the people" communism.<G>

Used charts and photocopies, are what I keep hearing. A large format printer isn't all that much larger, by the way. It just needs to get 2-1/2" wider in order to print 11x17 instead of 8-1/2x11, the other dimensions don't have to change. The scanner...can't help you there.<G> You can buy a slim one and scan and stitch, but unless you've got a very expensive high-dpi camera, you won't match the quality of scans. A scanned chart piece, 11x17 at 150 dpi (about the least acceptable resolution for this) is 4.2 megapixels. And you'll be losing some detail at that point. I guess that's just enough for what you need, if you don't have JPEG losses.

18-07-2006, 15:33	#4
hellosailor Registered User Join Date: Apr 2006 Posts: 3,993	Ah, outside the US charts are usually government property and cherished as valuable crown property. None of this "we the people" communism.<G> Used charts and photocopies, are what I keep hearing. A large format printer isn't all that much larger, by the way. It just needs to get 2-1/2" wider in order to print 11x17 instead of 8-1/2x11, the other dimensions don't have to change. The scanner...can't help you there.<G> You can buy a slim one and scan and stitch, but unless you've got a very expensive high-dpi camera, you won't match the quality of scans. A scanned chart piece, 11x17 at 150 dpi (about the least acceptable resolution for this) is 4.2 megapixels. And you'll be losing some detail at that point. I guess that's just enough for what you need, if you don't have JPEG losses.