Here a few examples:

(The output is shown within double quotes in the embedded comment)

Note : System.out.format() = System.out.printf()

import java.util.Calendar;
import java.util.Locale;

public class TestFormat {

    public static void main(String[] args) {
      long n = 461012;
      System.out.format("%d%n", n);      //  -->  "461012"
      System.out.format("%08d%n", n);    //  -->  "00461012"
      System.out.format("%+8d%n", n);    //  -->  " +461012"
      System.out.format("%,8d%n", n);    // -->  " 461,012"
      System.out.format("%+,8d%n%n", n); //  -->  "+461,012"

      double pi = Math.PI;

      System.out.format("%f%n", pi);       // -->  "3.141593"
      System.out.format("%.3f%n", pi);     // -->  "3.142"
      System.out.format("%10.3f%n", pi);   // -->  "     3.142"
      System.out.format("%-10.3f%n", pi);  // -->  "3.142"
      System.out.format(Locale.FRANCE,
                        "%-10.4f%n%n", pi); // -->  "3,1416"

      Calendar c = Calendar.getInstance();
      System.out.format("%tB %te, %tY%n", c, c, c); // -->  "May 29, 2006"

      System.out.format("%tl:%tM %tp%n", c, c, c);  // -->  "2:34 am"

      System.out.format("%tD%n", c);    // -->  "05/29/06"
    }
}

(source)

The field width specifiers are not spacing specs.

%-1 means left align in a field at least one character wide. But your first column is always at least 3 characters wide, so the specifier is ignored. The first column comes out looking neat purely by coincidence: all your numbers happen to have three digits.

Similarly, %10 means right align in a field at least 10 characters wide. But all your camera names are much longer than that, so the specifier is effectively ignored.

You are probably looking for something more like

%-4s%-25s%6.2f

This means:

1. Left align the first argument in a field at least 4 characters wide
2. Left align the second argument in a field at least 25 characters wide
3. Print the number right aligned, with two digits after the decimal point, in a field at least 6 characters wide

You could replace %4s with %3s<space> for a similar effect. The difference would be in how overflow is handled. The first version would not have a space following values in the first column that were longer than 3 characters. The second one would.

System.out.printf("%1$-30s %2$10d %3$10.2f %4$10.2f", "Diet Soda", 10, 1.25, 12.50);

Will print the line

Diet Soda                              10       1.25      12.50

The first string passed to the printf method is a series of format specifiers that describe how we want the rest of the arguments to be printed. Around the format specifiers you can add other characters that will also be printed (without being formatted).

The format specifiers above have the syntax:
%[index$][flags][width][.precision]conversion where [] denotes optional.

% begins a formatting expression.

[index$] indicates the index of the argument that you want to format. Indices begin at 1. The indices above are not actually needed because each format specifier without an index is assigned one counting up from 1.

[-] The only flag used above, aligns the output to the left.

[width] indicates the minimum number of characters to be printed.

[.precision] In this case the number of digits to be written after the decimal point, although this varies with different conversions.

conversion character(s) indicating how the argument should be formatted. d is for decimal integer, f is decimal format for floating points, s doesn't change the string in our case.

More information can be found here.