Auto flash shootingProcedure

1 Slide the Power switch to (ON).

2 Set the mode dial to (AUTO).

3 Confirm that the subject is within the effective flash range and the ready lamp is lit, and take a picture.

●The correct flash output is obtained in P-TTL auto mode only when the flash unit is used with auto-focus lenses.

Set the lens aperture to the position A in P- TTL Auto mode

When the lens you use is equipped with the lens aperture ring, set the position of the ring to A (You do not need to do this for the DA or FAJ lens). Otherwise, the flash unit cannot function in P-TTL Auto mode. When you use the cameras that support both P-TTL and TTL modes (*ist DS2, *ist DS, *ist D) , if the aperture of the lens is in a position other than A, you can shoot in TTL Auto flash mode. Be aware that for the cameras that only support P-TTL Auto flash, the flash unit does not adjust the flash output but discharges at full output, if the aperture of the lens is in a position other than A.

About TTL Auto flash mode

With single lens reflex cameras (film cameras) other than PENTAX digital single lens reflex cameras, you can perform auto flash shooting if they support TTL Auto. (However, the 645 format cameras before SF series and of the early type do not support the TTL Auto)

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