I have compiled an aperture table with 1/3 and 1/4 stops. The
rightmost column contains the commonly aperture values, and the stop
they are closest to. Go figure! Hope this helps.
IMHO it is (almost) completely useless to know this values so
precisely, but in case someone needs them, they are here :)

(formula used: full stops: factor of 2^(1/2)
half : 2^(1/4)
third : 2^(1/6)
quarter : 2^(1/8)
)


full half third quarter closest to
-------------------------------------------------------------------
1.00 1.0 full
1.09
1.12
1.19 1.2 half
1.26
1.30
1.41 1.4 full
1.54
1.59
1.68
1.78 1.8 ? third
1.83 1.8 ? quarter
2.00 2.0 full
2.18
2.24
2.38
2.52 2.5 third
2.59
2.83 2.8 full
3.08
3.17
3.36
3.56 3.5 third
3.67
4.00 4.0 full
4.36
4.49 4.5 third
4.76
5.04
5.19
5.66 5.6 full
6.17
6.35
6.73 6.7 half
7.13
7.34
8.00 8.0 full
8.72
8.98
9.51 9.5 half
10.08
10.37
11.31 11 full
12.34
12.70
13.45 13 half
14.25
14.67
16.00 16 full
17.45
17.96
19.03 19 half
20.16
20.75
22.63 22 full
24.68
25.40
26.91 27 half
28.51
29.34
32.00 32 full


--
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Peter Boros Email: boros@idt.unit.no (_V_\/@@\/_V_)
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