Does the shape of a halftone dot affect the amount of dot gain exhibited in a printed screen?

The answer is yes, the greater the perimeter of a dot, the more dot gain it will exhibit. Square dots will exhibit the most gain, and the square screens have a bump or jump when the corners touch in the midtone. Most printers avoid square dots unless they are attempting special effects. Round dots exhibit the least gain and are the least sensitive to slurring, which is why they are very popular with web printers and packaging printers. Elliptical dots produce smooth midtones and smooth flesh tones, but have problems with shadows. Most RIPs use some type of Euclidean dot, which is a digital hybrid screen that often uses round dots in the highlight and shadow areas and elliptical dots in the midtone. The Euclidean screen is considered to provide the best attributes of the various dot shapes. Stochastic screens composed of very small dots or spots typically exhibit significant dot gain due the large number of spots that replace larger, conventional screen dots.

}