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Overview of Flash Function
71
ADVANCED OPERATIONS
CAMERA FUNCTION TYPE A TYPE B TYPE C TYPE D
After the flash is charged, the camera automatically switches to
the flash-sync speed.
Automatic aperture setting in the Programmed AE Mode or
Shutter-Priority AE mode.
Flash confirmation signal in the viewfinder
TTL auto flash
Auto flash
Slow-speed sync in the Shutter-Priority AEMode or Metered
Manual Mode
AF spotbeam
Trailing-shutter-curtain sync flash
Contrast-control flash mode
O
O
O
O
O*2
O
O
O
O
O
O
O
O
O
O
O
O
O*1
O
O*3
O*4
O
O
O
O
Notes:
*1. When using a Type C flash (except AF220T) in the MS
(Manual Sync) or M (Manual) modes, set the camera’s
exposure mode to the Aperture-Priority AE Mode,
Manual or Bulb. The Program and Aperture-Priority AE
Modes cannot be used because the actual required
aperture value may change.
*2. AF500FTZ and AF330FTZ do not have the auto flash
capability.
*3. AF140C and AF080C do not have the auto flash capa-
bility.
*4. In the MS (Manual Sync) or M (Manual) mode, the
Shutter-Priority AE cannot be used because the actual
required aperture value may change.
Using other type of a flash
• Use of non-Pentax flash units may damage the camera.
For the best results, use a Pentax dedicated flash unit.
• Some large studio type flashes may have reversed con-
tacts and may not fire with the 645N
2
camera. For further
information, contact the manufacturer or local supplier of
the flash unit. Also, some studio flash units may not sync
properly and part of the image could be blacked out by
the second shutter curtain. It is recommended, for safe-
ty’s sake, to use a shutter speed one step slower than
flash sync speed.
TYPE A : AF500FTZ(*3), AF360FGZ, AF330FTZ TYPE B : AF400FTZ, AF240FT
TYPE C : AF400T, AF280T, AF220T, AF200T, AF080C, AF140C TYPE D : AF200SA, AF201SA