Step-up ring, Rt-el/px transmitter, Rt-20pw – Sekonic Speedmaster L-858D-U Light Meter User Manual

Page 210: Rt-3pw, P196)

196

8. Optional Accessories

■

Step-up Ring

You can attach the step-up ring (30.5 mm → 40.5 mm)

to the objective lens side to use a commercially available

filter. This allows you to determine the exposure without

troublesome correction calculation of the PL filter. PL filters

have the circular polarized light and polarized light types,

however, only the circular polarized light type can be used.

The step-up ring can also be used as a lens hood to protect

the spot lens from damage or dirt and avoid lens glare

which could cause incorrect light measurements etc.

■

RT-EL/PX Transmitter

This transmitter, compatible with 2.4Ghz Elinchrom radio

system (EL-Skyport) and Phottix radio system (Strato

protocol), separately requires a receiver for the relevant

system on the flash side. Installing the transmitter in

the L-858D enables to trigger the electronic flash units

wirelessly with radio signal for measurement. With EL-

Skyport system, it allows you to control the power of flash

units and modeling lamps as well as turn the power ON/

OFF of modeling lamps.

■

RT-20PW

This transmitter, compatible with 344Mhz frequency of

PocketWizard radio system, separately requires a receiver

for the relevant system on the flash side.

Installing the transmitter in the L-858D enables to trigger

the electronic flash units wirelessly with radio signal for

measurement. With ControlTL system, it allows you to

control the power of flash units and turn the power ON/OFF

of modeling lamps.

■

RT-3PW