less glossy papers. Usually the thicker the paper, the better it is for presentation.
Thinner papers are good for snapshots and review work.
HP manufactures a “Premium Photo Gloss” paper that currently is available in 11
mil thickness. Their older version was 10 mil. Most paper manufacturers prefer to
increase the thickness as their printers become better at printing on thick papers.
Some papers are cut to a specific standard, called an ISO size. You may have seen
A4 paper, which is the standard letter size for European papers. The A standard
starts at A0, which is 1 square meter, and continues up to A6, which is smaller. All
the A-sized papers use a ratio of 1:1.1414. If you cut an A0 piece of paper in half,
you will end up with two A1 sizes of paper. Table 19.1 presents a breakdown.Table 19.1 ISO Paper Sizes
Sheet Size Width ×Height (in centimeters)
A0 84.1 ×111.9
A1 59.4 ×84.1
A2 42 ×59.4
A3 29.7 × 42
A4 21 ×29.7
A5 14.8 × 21
A6 10.5 ×14.8
A7 7.4 ×10.5
A8 5.2 ×7.4Plain Papers
Brightness ratings exist for plain papers—the brighter, the better. Most copier paper
(that generic paper you use for just about everything at work) is around a brightness
of 82.
Higher-end plain papers by Kodak and HP have a brightness of 94–102. The science
behind these numbers is rather subjective, but the bottom line is these papers are
whiter and brighter and more expensive. Often these papers are fine for invitations,
pamphlets, and even working photos during heavy editing.CHAPTER 19 PRESERVING YOUR IMAGES 287