APERTURE    MAG 
Tom Whitney  265-6234  E-Mail
Aperture
Inches
Mag.Visible
2 10.3
3 11.2
4 11.8
5 12.3
6 12.7
7 13.1
8 13.3
9 13.6
10 13.8
12.5 14.3
14 14.5
16 14.8
18 15.1
20 15.3
24 15.7
40 16.2