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YONGNUO designed a new Speedlite transmitter compared to Original ST-E2, for E-TTL/E-TTL II wireless flash system. It improved and increased some new functions as below:1.Ultra-AF: Improves the assist focus function, the max. focus distance can reach 25 meters2.Access to Camera menu: It is the special function designed by YONGNUO for ST-E2.You can set the relevant parameter of speedlite through access to the camera menu.3.Support Exposure compensation: You can adjust the power output of the speedlite by using the flash and exposure compensation to make the photography effect meet your requirement.4.Support Exposure Bracketing ( FEB ): Access to the camera menu to set the exposure bracketing function, it can help you to improve the success rate of photography.5.Support Group C Flash: You can set the parameters of Group C flash via your camera's menu. ( Please kindly note that not all cameras provide this menu)6.Modeling Flash: When the button of depth of field on the camera is pressed, it can control the speedlite to send out the modeling flash.7.Rotatable: You can control the angle scope of the slave unit through rotaing the camera body ( left and right 135??). This makes it easy to serve the slave unit and mett your multi-angle creative need.And additional, it has below function:8.Overheating Protection: If the controller is used too frequently, it's overheating protection function will be triggered, the ETTL and HSS indicator will blink alternatively, and the controller will be locked.9.Power saving function: If the controller keep sidle for 2 minutes and then it will step into the dormancy state in order to save power, it will automatically shutdown after keeping idle for 15 minutes.Compatible Camera: Canon 1000D 550D 500D 450D 400D 350D 50D 40DCompatible Flash: Canon 550EX, 430EX, 430EX II, 580EX, 580EX II

Radio Flash Trigger with 30m Effective range Features: 1.4 selectable radio channels Two LEDs for power and signal Receiver can be fixed on standard Tripod with 1/4" thread compatible with most of the flash guns such as Canon 580/430EX, Nikon SB600/800/900 The transmitter/receiver pair can be used to trigger all studio strobe light units by employing a 6.35mm standard phone jack or 3.5mm mini phone jack sync input (included in package) The transmitter works with all cameras with a standard hotshoe socket (Except Minolta & Sony). A universal hotshoe socket on the receiver for portable (hotshoe) flash such as Canon, Nikon, Olympus, Pentax, Sigma and etc (Except Minolta & Sony). The receivers can be mounted on standard Tripod with 1/4" thread Specification: Flash sync speed: 1/250s 4 Radio Frequency: 433MHz Transmitter Effective range: 30m without interference Time of shooting: up to 20, 000 times Transmitter Power: 23A 12V battery Receiver stand-by time: up to 45 hours(AAA batteries are not included) What's in the Box: 1 x IS04-A Transmitter 1 x IS04-A Receiver with one hotshoe socket for both speedlite flash and strobe light 1 x PC sync Cable 1 x 3.5mm-3.5mm Plug Adapter 1 x 3.5mm-6.35mm Plug Adapter Note: AAA batteries for the receiver are NOT included.

Radio Flash Trigger with 30m Effective range Features: 1.4 selectable radio channels Two LEDs for power and signal Receiver can be fixed on standard Tripod with 1/4" thread compatible with most of the flash guns such as Canon 580/430EX, Nikon SB600/800/900 The transmitter/receiver pair can be used to trigger all studio strobe light units by employing a 6.35mm standard phone jack or 3.5mm mini phone jack sync input (included in package) The transmitter works with all cameras with a standard hotshoe socket (Except Minolta & Sony). A universal hotshoe socket on the receiver for portable (hotshoe) flash such as Canon, Nikon, Olympus, Pentax, Sigma and etc (Except Minolta & Sony). The receivers can be mounted on standard Tripod with 1/4" thread Specification: Flash sync speed: 1/250s 4 Radio Frequency: 433MHz Transmitter Effective range: 30m without interference Time of shooting: up to 20, 000 times Transmitter Power: 23A 12V battery Receiver stand-by time: up to 45 hours (AAA batteries are not included) What's in the Box: 1 x IS04-A Transmitter 5 x IS04-A Receiver with one hotshoe socket for both speedlite flash and strobe light 1 x PC sync Cable 5 x 3.5mm-3.5mm Plug Adapter 5 x 3.5mm-6.35mm Plug Adapter Note: AAA batteries for the receiver are NOT included.

Radio Flash Trigger with 30m Effective range Features: 1.4 selectable radio channels Two LEDs for power and signal Receiver can be fixed on standard Tripod with 1/4" thread compatible with most of the flash guns such as Canon 580/430EX, Nikon SB600/800/900 The transmitter/receiver pair can be used to trigger all studio strobe light units by employing a 6.35mm standard phone jack or 3.5mm mini phone jack sync input (included in package) The transmitter works with all cameras with a standard hotshoe socket (Except Minolta & Sony). A universal hotshoe socket on the receiver for portable (hotshoe) flash such as Canon, Nikon, Olympus, Pentax, Sigma and etc (Except Minolta & Sony). The receivers can be mounted on standard Tripod with 1/4" thread Specification: Flash sync speed: 1/250s 4 Radio Frequency: 433MHz Transmitter Effective range: 30m without interference Time of shooting: up to 20, 000 times Transmitter Power: 23A 12V battery Receiver stand-by time: up to 45 hours (AAA batteries are not included) What's in the Box: 1 x IS04-A Transmitter 3 x IS04-A Receiver with one hotshoe socket for both speedlite flash and strobe light 1 x PC sync Cable 3 x 3.5mm-3.5mm Plug Adapter 3 x 3.5mm-6.35mm Plug Adapter Note: AAA batteries for the receiver are NOT included.

Compatible to CANON EOS 600D, 1100D, 550D, 500D, 450D, 1000D, Rebel T3i, T3, T2i, T1i, XSi, XS, 7D, 60D, 50D, 40D, CANON EOS 5D Mark II, 1D Mark III, 1D Mark IV, 1Ds Mark III; Canon EOS 580EX II, 580EX, 430EX II, 430EX, 320EX II, 270EX , 270EX II, 220EX II Flash, Aftermarket flash Metz, Sigma, Sunpak, Nissin, Studio and outdoor flash

With this magic O-Flash unit, you can turn your normal flash unit into a high-quality Ring-Flash Unit (O-Flash) without any additional accessories. This practical O-Flash is a an ideal solution for macro photography without complicated procedure and a lot of invest.This O-Flash unit is a unique adapter for your hot-shoe flash unit designed to replicate the lighting effect produced by traditional, expensive, and heavy powered studio ring flash units. Main Highlights: light and compact, easy to mount without boring cable. The synchronous Flashlight distribution is accomplished through a sophisticated system of internal prisms, reflectors and light-shapers designed to distribute and project the light evenly around the lens, softer even than a professional studio ring flash. well-made with modern design Allows infrared AF assist beam pass through the flash ring. TTL functions will work normally when using this O-Flash. As with standard flash use, manual exposure control requires the use of a light meter or test-shots. weight: approx. 430g ? Compatible with the following models (all tested): Nikon SB800 + D70S / D300 / D200 Nikon SB600 + D1 / D2 / D3 / D3X / D700 Canon 550EX / 580EX / 580EX II + 500D / 450D / 400D / 350D / 300D or similar camera and flash units ? Package Includes: O-Flash F160 x 1