F-Stop Timing Table
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by Ralph W. Lambrecht

f/stop Timing Table [s]
Determine the base print exposure time, rendering significant print highlights to
your satisfaction, and find
this ‘Base Exp’ in the center
column. Base exposure times
are incremented in 1 stop
(black), 1/3 stop (dark grey),
1/6 stop (light grey) and 1/12
stops. After adjusting overall
print contrast, rendering significant print shadows as
desired, find related dodging
and burning times in 1/6 stop
increments left and right to
the base exposure to fine-tune
the final print.
Example: Assuming a basic
print exposure time of 25.4s,
exposure is held back locally
for 5.2s to dodge an area for
a 1/3 stop, and a 10.5s exposure is added locally to apply
a 1/2 stop burn-in.
Only base exposure time and
f/stop modifications are
added to the print record.

Dodging [f/stop]

Burning [f/stop]

-1

-5/6

-2/3

-1/2

-1/3

-1/6

Base
Exp

-4.0

-3.5

-3.0

-2.3

-1.7

-0.9

8

1.0

2.1

3.3

4.7

6.3

8.0

12.2

17.4

24.0

32.3

42.8

56.0

-4.2
-4.5

-3