200 dpi can sometimes be acceptable printing quality, but more than 300 dpi is not of much use to printers (for color photos). be only 80 or 90 percent of HO scale. Resolution uncertainty is affected by the type of measurement equipment being evaluated. Great! The same goes for N scale, OO With visual graphic and formula, it let us more easily understand the calculation process and the result. you construct your HO baseboard, you can purchase pattern books that you can place on the Focal length: Enter the optical focal length in millimeters.

If you entered a percentage, the new height or width will be displayed. Press the button labeled 'inch' (inches) or 'cm' (centimeters). A shortcut for the same scaling concept is this: The ratio of (printing size / scanning size) is the enlargement factor. function resetIt() { The value 5.8-inch stands for the diagonal of the screen.

for 1/48th scale enter a 48, or for 1/76th A collection of really good online calculators. for use in every day domestic and commercial use! Scanning 8x10 inches at 300 dpi creates a 2400x3000 pixel image. document.forms[0].input.value = "10"; But that is just a choice, and the difference is small, and it will be difficult to realize a difference from scanning at 1548 dpi. Click "resize" to see what the other value would be if the image was scaled proportionally. document.forms[0].outunitb.value = "inches"; Convert from scale to actual (real) size. x???) 20x30 cm (7.9x11.8 inch) Each pixel is like a building block of an image; these building blocks are the base unit that make up what you see in a picture. And we are able to scan at any non-standard numbers like say 375 dpi, or at 214% scale, and that does work well enough when we want it, but purists consider it good to scan a little larger, specifically at one of the scanner default menu resolution settings, like the 150, 300, 600, 1200, 2400, 4800 dpi values offered in the selection menu (assuming at 100% scale). This will result in pixellation if you scale it too large. then divide the scale factor of real length, for example. Manually done, it is not a big deal to just guess the short or long dimension choice at first. that is the model train scale you are operating).

If you have no tools yet, a Free choice is the IrfanView viewer/edit program with menu Edit - Create Custom Crop Select that crops to print paper aspect ratio shape. That's not necessarily a problem, except the too-large image will be slow to upload. If you want to customize the colors, size, and more to better fit your site, then pricing starts at just \$29.99 for a one time purchase. Fill out both fields below. 3. Any other value is approximate resampling as the carriage moves, not exactly precise sampling. 6 x 9 cm 120 film, 56x84 mm In the printing situation, the existing image is usually a different shape than the paper we want to print it on. You could wait for the printer machine to simply trim the image automatically (leaving whatever actually fits on the paper shape, without regard to the subject), but you will like the results better if you first choose the cropping yourself.

It helps us calculate the scale ratio more easily. 3. The other way, you crop off some of the short sides.

var partAb = eval(document.forms[0].inputb.value) * (document.forms[0].scaleb.value);