Canon F1 Instruction Manual

							23 REWINDING THE FILM
Notes
 If you are not sure the rewind lever is engaged, or if you have accidentally
engaged it, gently press the shutter button and the lever will pop back up.  The frame counter does not count backwards as you rewind the lm.
 The frame counter will return to S and the rerwind lever will automatically
disengage when you open the camera back. 51 
						

							24 DEPTH OF FIELD
24 Depth of Field
There are two ways to check depth of eld. One is by using the depth-of-eld scale
on the lens. This is a scale of f/stops repeated on each side of the distance index. 1. First focus. Then press the shutter button halfway and note to which f/stop
the meter needle points in the viewnder. Find the two f/stops on the depth-
of-eld scale which correspond to that number. 2. Draw imaginary lines from those two numbers to the distance scale. The
eective depth of eld lies between those two distances. 52 
						

							24 DEPTH OF FIELD
You can check depth of eld visually in the following way:
 Focus the sub ject. Then press the shutter button halfway and note to hich
f/stop the meter needle points in the viewnder.  Turn the lens aperture ring to that f/stop.
 Push in and then release the stop-down slide so that it unlocks and you can
see its red line. Now, just by looking at your sub ject through the viewnder,
you can see the range of sharp focus.  After checking depth of eld, push in and then release the stop-down slide.
Note
It is impossible to release the stop-down slide when the lens aperture ring is on
A. If you are using the camera in shutter-priority AK, rst disengage the lens
from A and set the working aperture. After checking depth of eld, return the
aperture ring to the A mark. 53 
						

							25 SELF-TIMER
25 Self-timer
 First make sure the lm is advanced to the next frame.
 Turn the self-timer/lock lever to S.
 Focus the sub ject and take a meter reading. Do not set the shutter dial to
B because the self-timer will not function on this setting.  Press the shutter button. A beep-beep sound will be emitted. The shutter
will be released automatically ten seconds later. At two seconds before shutter
release, the camera will begin to beep at a faster rate.  Following exposure, turn the lever back to A or L unless you want to use
the selftimer for the next shot.
Notes  In shutter-priority AE. the camera is designed to re
ect any last-second changes
in lighting and will not set the exposure until an instant before the shutter
itself is released.  In aperture-priority AE, the camera sets the shutter speed the moment you
press the shutter button. Therefore, do not stand in front of the lens while
you press the shutter button or exposure may be incorrect. 54 
						

							25 SELF-TIMER
 If you have started the self-timer and wish to cancel its operation, press the
battery check button. Eyepiece Shutter
If your eye will not be to the eyepiece during shutter release, close the eyepiece
shutter to prevent stray light from entering and causing underexposure. This is
particularly important in self-timer AE photography, and also applies to remote
control and night photography.
To close the eyepiece shutter, push the lever clockwise. The red dot is a reminder
that the eyepiece shutter is in place. 55 
						

							25 SELF-TIMER
56 
						

							26 MULTIPLE EXPOSURES
26 Multiple Exposures
The New F-1s provision for multiple exposures allows you to easily make two or
more exposures on the same frame for creative eect. 57 
						

							26 MULTIPLE EXPOSURES
1. First advance the lm to the next frame.
2. Then take up any lm slack. To do this, unfold the rewind crank and gently
turn it in the direction of the arrow until it stops. 3. Focus, compose your sub ject and take the picture.
4. Turn and press down the rewind lever in the usual manner; the lm will now
retain stationary for multiple exposures. 5. Gently turn the lm advance lever. This will cock the shutter for the next
exposure.
You can make any number of exposures on the same frame simply by repeating
steps 3, 4 and 5 above in the proper order. Each time you turn the lm advance
lever, the cameras frame counter will advance once. There is, however, a possibility
of slight movement of the lm if you make an excessive number of exposures on the
same frame.
If you have engaged the rewind lever for multiple exposure and wish to cancel it,
lightly press the shutter button before turning the advance lever. Note that it is
not advisable to make multiple exposures on the rst or last several frames due to
possible lm curl which may adversely aect image registration. 58 
						

							26 MULTIPLE EXPOSURES
Note
Multiple exposures are also possible when the AE Power Winder FN or AE Motor
Drive FN is attached to the camera. To release the shuter, use either of the two
shutter buttons of the power drive. To return to normal shooting, cap the lens and
take a blank shot using the cameras shutter button. 59 
						

							27 EXPOSURE IN MULTIPLE EXPOSURES
27 Exposure in Multiple Exposures
Generally, the rst exposure of a series should be of a relatively dark sub ject so
that the image in the next exposure will show up clearly. For best results, it is
advisable to decrease the exposure for each shot. Depending on the situation, there
are several ways to do this. One way is to change the ISO setting to a higher value
as described earlier. In this method, you must rst decide how many exposures you
want to make on the same frame. If a double exposure, make lSoth exposures at
twice the normal ISO rating; if a triple exposure, make all three exposures at three
times the normal ISO rating, and so forth.
Another way to correct exposure is to use the exposure compensation dial. This
method is the same as that of changing the ISO. That is, for a double exposure, set
the dial to 1/2 for both exposures; for a triple exposure, at the setting between
1/2 and 1/4, and so on. Both methods described above are merely guideiines,
and your technique will benet greatly from practice.
Number of Multiple Exposures Exposure Compensation Scale
Double 1/2
Triple Between 1/2 and 1/4
Quadruple 1/4
60