Exposure Plan B for Sheet Film

Expose the sheets labeled 1-5 of sets A, B, C, and D as follows: SHEET APERTURE SETTING

1 (A, B, C, D) Normal exposure at the film's standard ASA

2 (A, B, C, D)

One-half stop less exposure than sheet 1

3 (A, B, C, D)

One full stop less exposure than sheet 1

4 (A, B, C, D)

One-half stop more exposure than sheet 1

5 (A, B, C, D)

One full stop more exposure than sheet 1

Under column C, labeled "ASA," list the equivalent ASA numbers for the exposures listed in columns A and B.

Note: Modern light meters list ASA numbers that double from 6 through 6400, with one-third-stop markings in between. For the purposes of this test, we are bracketing by half stops. Use equivalent ASA numbers that are halfway between these printed numbers. For example, between ASA 400 and ASA 200 would be ASA 300 or 250. The actual number you use doesn't matter as much as consistency. Of course, your meter numbers and exposures will probably be different, but at this point, your Exposure Record and sketch should be similar to Figure 66. Study this illustration carefully. It is important that the logic of these settings is clear.

subject

0

1

II

III

IV

v

VI

VII

VIII

IX

s speed

f stop

asa

dev

test house

8

9

10

11

12

13

14

Vl2S

f/8

400

normal

f/8-11

600

f/11

800

f/11-1รถ

1000

f/i6

1600

f/8

400

f/8-5.6

300

f/5.6

200

f/5.6-4

150

f/4

100

unexposed

remaining frames

Vl25

f/5.6

200

FIGURE 66 Step 5 - Sketch and Exposure Record filled in completely.

FIGURE 66 Step 5 - Sketch and Exposure Record filled in completely.

0 0

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