Setting Asa Film Speed - Pentax K1000 Manual

SETTING ASA/ISO FILM SPEED
The ASA/ISO film speed rating of all 35mm films
is given in the data sheet packed with each roll of
film. The higher the ASA / ISO number, the more
sensitive the film is to light. Lift the outer ring
of the shutter speed dial and rotate it until the
ASA / ISO number of your film is opposite the
orange dot alongside the figure 1 .
Be sure to set your film speed on the shutter
speed dial because the dial is connected to the
exposure meter.
2500 2 000 1250 1000 6 40 500
• I I • I I • I I
3200 1600 800
.11
320 250
• I I
400
160 125
• I I
200
•
100
80
I
•
64
50
4iJ
I I
•
32
25
I
•
20