Specifications

JavaScript-compatible browsers offer the choice of [Camera control] and [Simple control]

interfaces. [Camera control] (Figure 4) is suitable for computers and [Simple control]

(Figure 5) for PDAs or other small devices. Note that [Simple control] offers only Live

View shooting and focusing. (In the [Camera control] interface, Live View image size

switching (implemented for the WFT-E5) is not supported due to the system restrictions.)

Linked shooting: Up to 10 slave cameras linked to a master camera can be wirelessly

triggered. The transmission range is approximately 100 m / 328 ft. from the master camera

(when signal strength is favorable). Videos cannot be captured this way. Operation of slave

cameras is linked to pressing the master camera shutter button halfway or fully. Pressing the

master camera shutter button halfway puts slave cameras in the same state as if the shutter

buttons were pressed halfway (at which point AF and AE begin).

After AF and AE on slave cameras, when the slave cameras are waiting for the master

camera shutter button to be fully pressed, the slave cameras will respond as if their shutter

buttons were fully pressed within 0.05 second after the master camera shutter button is fully

pressed. Under these conditions, the linked shooting time lag is within 0.05 second. This

time lag is unrelated to the distance of slave cameras from the master camera. It is the same

whether they are 1 m / 3.3 ft. or 100 m / 328 ft. apart. Note that a time lag ten times as

long (approximately 0.5 second) may occur when images captured by slave cameras are being

developed and written, or when the LCD monitor is used.

These models are inter-compatible for purposes of linked shooting: the EOS-1D Mark IV

and WFT-E2 II A the EOS 5D Mark II (requires firmware update) and WFT-E4 II A, and

the EOS 7D and WFT-E5A. The three models can be freely combined in linked shooting.

IV–24 ACCESSORIES