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Item#: 9SIA2C00UN5409

Yongnuo RF-603 C1 Wireless Flash Trigger for Pentax K20D K200D K10D K100D LF238

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Yongnuo RF603 Wireless Flash Trigger

The brand new RF-603 is a remote shutter release as well as a multi-functional radio flash trigger which can synchronously trigger flashes and studio strobes. Through the transceiver based system each item can be used flexibly as a trigger or a receiver. Only 2 AAA batteries are required as power source for each item. The 2.4GHz wireless frequency is suitable in most countries and guarantees high speed, distance and stability. Within capacious areas, the remote control distance may reach to 100m. The synchronization speed can reach to 1/320, depending on the situation it may reach to 1/250 or less. A set consist of 2 equal transceivers. Both of them can be a receiver as well as transmitter. It can trigger 1 flash with one set, since one serves as trigger and one as receiver


1. Works as a wireless shutter release control
Auto focus, continuous shooting, long exposure, half-way pressing, full-way pressing is supported
Depending on the camera model a special shutter release cable is included in the package

2. Transceiver based system - works as a wireless flash trigger and receiver
Each RF-603 is designed to work as trigger and as receiver. The unit automatically detects the mode it should work in. You have the full flexibility out of your gear.
As a receiver it fires off-camera flashes which are placed on the hot shoe of the transceiver.
Additionally the transceivers PC Sync connector can be used to fire studio strobes. Required cables to 3.5mm (1/8"), 6,35mm (1/4") can be purchased from us.
Wake up function: Mount the transmitter into hot shoe of the camera, connect the receiver with the flash, press half-way the shutter button to wake up the flash at the same time, the green signal light will be bright for some seconds and then press shutter button completely to fire the flash. This "Wake up" function is only supported for flashes which have a sleep mode.
As a trigger the RF-603 can be placed in the cameras hot shoe or if you wish be connected with the camera by a PC Sync cable. In the latter case you are free to mount an additional flash top-camera.
One transceiver can trigger more than 1 flash at the same time. You would have to buy additional transceivers for 2 or more flashes, since you need one transceiver as a trigger and one or more transceivers as receivers.

3. Wirelessly trigger studio flashes
Using a PC Sync cable the transmitter can wirelessly and synchronously trigger your studio strobes.Required cables to 3.5mm (1/8"), 6,35mm (1/4") can be purchased from us.

Specification (each item):

Type: FSK 2.4GHz wireless remote system
Transmitter Distance: 100m
Channel: 15 different channels and all channels
Release: Half-way press, full-way press
Transmitter Port: PC Sync
Receiver Port: PC Sync, 2.5mm for shutter release
Time of shooting: Up to 20000 times
Receiver stand-by time: Up to 45 hours (using AAA batteries)
Dimensions: 37mm x 30mm x 81.5mm
Weight: 2 x 150g

Suitable for Cameras:
C1---Canon: 1000D/500D/450D/400D/350D/300D
PENTAX: K20D/K200D/K10D/K100D
C3---Canon: 1D/1DS?EOS5D/5D2/50D/40D/30D/20D/10D
N1---Nikon: D3X/D3/D700/D300/D2X/D2H/D200/D1H/D1X
N2---Nikon: D80/D70S
N3---Nikon: D90

Compatible Flashes
Nearly all flashes with a standard hot shoe and being released by the middle contact are compatible
Please note that the RF-603 only supports the manual flash mode, not TTL, but it works with TTL flashes
Supports the "sleep mode" or "wake up" mode which some flashes are equipped with
Canon 580EX II, 580EX, 540EZ, 520EZ, 430EZ, 430EX, 420EX, 420EZ, 380EX
Nikon SB-900, SB-800, SB-28, SB-27, SB-26, SB-25, SB-24
Not compatible with Nikon SB-600
Pentax AF-540 FGZ, AF-360 FGZ, AF-400 FT, AF-240 FT
Olympus FL-50, FL36
Fuji S3Pro / S5pro
Nissin, only newer models are compatible, please check before purchase
Sigma EF-500 DG Super, EF-500 DG ST, EF-430
Sunpak Auto 2000DZ, 622 Pro, 433AF, 433D, 383, 355AFm 344D, 333D
Vivitar 285HV
Yongnuo YN460, YN462, YN465, YN467, YN468, YN560
Not compatible to Sony/Minolta flashes

Package Includes:
2x RF603 Transceivers
1x C1 Shutter release cable
1x user manual

Quick Info

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  • David W.
  • 11/30/2013 4:31:01 PM
  • Tech Level: High
  • Ownership: 1 week to 1 month

5 out of 5 eggsRF-603C Triggers

Pros: They work great on Canon E-TTL camera with a 3.5 shutter release jack.

Cons: They won't work with Pentax P-TTL flash system.

Other Thoughts: They should fire the shutter on the above Pentax models, but the P-TTL won't work, because these are for Canon Cameras. I didn't buy from I would mount them on the Pentax camera hot shoe, it may short the electronics.

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  • Philip L.
  • 9/2/2013 2:32:27 PM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

1 out of 5 eggsdelivered but not functional

Pros: came in a nice box.

Cons: did not work. Failed to trigger.Would not connect to each other. No signal.

Other Thoughts: This is the second time I have attempted to aquire these triggers. The first time the vendor (not the same as here nor the same web site) failed to send the device. This time the vendor supplied the device within the time limits. But they did not work, failed to connect.

Did you find this review helpful? Yes No

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Item#: 9SIA2C00UN5409
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