Table 2:
Solar Eclipse Exposure Guide

Subject: Solar Eclipse	Q	Shutter Speed (s)
Partial[1] - 4.0 ND	11	-	-	-	1/4000	1/2000	1/1000	1/500	1/250	1/125
Partial[1] - 5.0 ND	8	1/4000	1/2000	1/1000	1/500	1/250	1/125	1/60	1/30	1/15
Baily's Beads[2]	12	-	-	-	-	1/4000	1/2000	1/1000	1/500	1/250
Chromosphere	11	-	-	-	1/4000	1/2000	1/1000	1/500	1/250	1/125
Prominences	9	-	1/4000	1/2000	1/1000	1/500	1/250	1/125	1/60	1/30
Corona - 0.1 Rs	7	1/2000	1/1000	1/500	1/250	1/125	1/60	1/30	1/15	1/8
Corona - 0.2 Rs[3]	5	1/500	1/250	1/125	1/60	1/30	1/15	1/8	1/4	1/2
Corona - 0.5 Rs	3	1/125	1/60	1/30	1/15	1/8	1/4	1/2	1	2
Corona - 1.0 Rs	1	1/30	1/15	1/8	1/4	1/2	1	2	4	8
Corona - 2.0 Rs	0	1/15	1/8	1/4	1/2	1	2	4	8	15
Corona - 4.0 Rs	-1	1/8	1/4	1/2	1	2	4	8	15	30
Corona - 8.0 Rs	-3	1/2	1	2	4	8	15	30	60	120

Exposure Formula: t = f^2/ (I X 2^Q) where:

t = exposure time ()
f = f/number or focal ratio
I = ISO film speed
Q = brightness exponent

ND = Neutral Density Filter.
Rs = Solar Radii.

[1] Exposures for partial phases are also good for annular eclipses.
[2] Baily's Beads are extremely bright and change rapidly.
[3] This exposure also recommended for the 'Diamond Ring' effect.