Shutter Speed And Aperture; Attaching The Lens; Removing The Lens; Exposure - Hasselblad 503CWD User Manual

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Shutter speed and aperture

The shutter speed selector ring is the ring located closest to the front of the lens. To set
the speed, turn the ring until the desired marked shutter speed position aligns with the
central lens index. The white scale shows the shutter speeds, and the orange scale the
exposure values (EV). The aperture setting ring is the second closest ring to the front
of the lens. The aperture value is also set against the central lens index. The diaphragm
is automatic and stops down to the preset working aperture at the start of the exposure
sequence. Therefore in the illustration, the exposure setting is 1/60 second at f/11.
The orange 'F' setting is used only when the lens is attached to a Hasselblad camera in the
200 or 2000 series with a focal plane shutter. The operation of the diaphragm is not affected.
The 'F' setting can only be engaged/disengaged when the orange lever is pressed.

If the F setting is used, exposure errors will occur since the shutter remains open.

Attaching the lens

Make sure that both camera and lens are fully wound. Illustration 2 shows the correct
relationship between the drive shaft, the lens drive coupling and their indexes. If the
lens is not wound, you can insert a small coin or similar in the coupling slot and rotate
it clockwise until it locks (about 4/5 of a turn) When you have aligned the red index on
the lens with the one on the camera (illus 3), the lens will drop easily into the bayonet
fitting. You can then rotate it clockwise until it stops with a faint click as the lens catch
locks it in place.

Removing the lens

Depress the lens release button and rotate the lens counter-clockwise until it stops and
lift it out of the mount.

You can only remove the lens when the camera is fully wound and not In the pre-released
mode (see "pre-release and cable release).

Exposure

As a general rule for all shutter speed settings except B, you should keep the release
button depressed until the lens shutter has opened and closed fully. This is especially
important at shutter speeds from Is to l/4s, as the auxiliary shutter remains open only
when the button is kept depressed (see also 'Warning Mark' below). If you remove the
magazine, you can see the auxiliary shutter, consisting of two blinds, covering the rear
opening of the camera body. It protects the film from unwanted exposure as the lens"
shutter normally is open for focusing.
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With longer exposure times, connect the flash sync input cable between the PC-socket (flash
sync contact) on the lens and the flash sync IN terminal on the digital back. This eliminates
any conflict between the shutter setting and the digital back 'time -out' setting.

Warning mark

You will find an orangeline on the shutter speed scale above the 1, 1/2, and l/4s settings.
This is to warn you of possible exposure errors as detailed above. The auxiliary shutter
will terminate the exposure prematurely if you relax the pressure on the button too soon.
Listen to the buzzing sound of the delay escapement in the lens' shutter and maintain
the pressure on the release button until the sound stops.

Exposure values

The aperture and shutter speed combination set opposite the central lens index deter-
mines the exposure. Every combination of shutter speed/ aperture has an equivalent
exposure value (EV) which you can read and set against the red EV index on the right
hand side of the lens.
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