Quantum Qflash X4d Instruções de Operação descarregar pdf (Página 32)

For calibration to a particular flash meter you may use the proce-

dures below. It is very important to note the meter measurement type

(incident, reflected) used for each procedure!

9.1 Manual mode Qflash Compensation

This procedure will calibrate

Qflash to an incident light flash

meter you use and trust. Note

that only incident light measure-

ments are reliable for manual

exposure settings.

1. Place the Qflash 10 feet from

the incident light flash meter

facing Qflash.

2. The area surrounding the meter and flash should be similar to the shoot-

ing environment you usually work in. For example, in a large hall, there

will be little light bouncing from walls and ceilings. In a small room, the

Quantum calibrates Qflashes to American National Standards Institute

(ANSI) standards with laboratory equipment traceable to the National

Institute of Standards and Technology (NIST).

From time to time, photographers may wish to fine-tune Qflash exposures

to match their exposure meters, to compensate for variations in cameras

or films, to match particular styles, for effects, or for individual taste.

There are two compensations available – one for Manual and one for Auto

mode. In TTL or QTTL modes Qflash does not control exposure, which is

controlled by the camera. The compensation procedures below cannot

affect TTL or QTTL exposures.

Setting Compensation

In either Manual or Auto mode press Set G until the compensation indi-

cator appears. Adjust compensation Up J or Down L in 1/3 steps up to

+3 or -3 stops. All exposures for that mode will be compensated by the

amount selected.

9. EXPOSURE COMPENSATION OF Qflash

Compensations for Manual and Auto modes are independent from

each other and can be different. Compensations will not apply when-

ever Wireless or Wired appears in the display.

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Quantum Qflash X4d Instruções de Operação Página 32