রেফারেন্স পুস্তিকা
98
g
A -
- mk :
i, p, n, s, w, 0, S, T, U, '
1
/
200–
1
/
60 n
k
1
/
200–
1
/
30 n
o
1
/
200–1 n
P, S, A
1
/
200–30 n
M
1
/
200–30 n, ,
A , ,
(ISO
)
ISO :
100 200 400 800 1600 3200 6400 12800
1.4 2 2.8 4 5.6 8 11 16 1.0-8.5
2 2.8 4 5.6 8 11 16 22 0.7-6.0
2.8 4 5.6 8 11 16 22 32 0.6-4.2
4 5.6 8 11 16 22 32 — 0.6-3.0
5.6 8 11 16 22 32 — — 0.6-2.1
8 11 16 22 32 — — — 0.6-1.5
11162232——— — 0.6-1.1
162232———— — 0.6-0.7