Well, sort of. Pixel released their King triggers to remove this limit, but their development was truncated. Now we have the Yongnuo YNC which seems to fulfil the promise of a full implementation of Canon flash technologies over a radio link. It seems that Yongnuo has not only achieved this objective, but has added a wide range of triggering and photographer-friendly capabilities. Yongnuo have a range of hot-shoe flashes, with a reputation for unreliability. The design engineer for this device looks like single-handedly rescuing the brand.
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Well, sort of. Pixel released their King triggers to remove this limit, but their development was truncated. Now we have the Yongnuo YNC which seems to fulfil the promise of a full implementation of Canon flash technologies over a radio link.
It seems that Yongnuo has not only achieved this objective, but has added a wide range of triggering and photographer-friendly capabilities. Yongnuo have a range of hot-shoe flashes, with a reputation for unreliability. The design engineer for this device looks like single-handedly rescuing the brand.
Each method has its place, and photographers who understand the technologies can get predictable results. The YNC is a tool for both approaches. That still leaves distance, height, angle, relative powers, uneven ambient etc that can make a substantial difference. It is much more accurate than the EV method. The YNC implements the genuine Canon technology in the camera. The YNC does not provide for firmware updates by the user. The transceiver buttons are hard to find by touch, and are sensitive to accidentally changed settings.
Only flashes in group C can be disabled remotely. It is not a significant list of drawbacks. An examination of the case and internal components reveals a high-quality assembly. The case appears firm. I anticipate a good life expectancy. Because the YNC is designed primarily to implement Canon technologies, a thorough knowledge of both camera and flash manuals is helpful.
Each camera model has its own variations. My verdict: versatile, complex, well-made, suitable for many jobs, and low-priced. Buy it. The author has no association with the manufacturer other than as a paying customer. Some additional samples were received; thanks, Yongnuo. Glossary Hot-shoe, Hot-foot, Cold-shoe: The hot-shoe is the accessory fitting on top of camera and transceiver. The hot-foot goes into the hot-shoe, e. A cold-shoe holds a hot-foot without making contact with the pins.
Transmitter TX, Controller : The transceiver when mounted on the camera hot-shoe. Transceiver will still act as a Receiver to another transceiver on the same channel. Remote Flash: A flash connected to a Receiver, by hot-shoe or by cable.
On-top flash: A hot-shoe flash mounted on the Transmitter. It has some special features. The is rated at only 6 volts on the trigger contact of its hot-shoe. The PC-sync connection can withstand volts. But the YN is bought for its control abilities with a type A camera. A bit of relevant Speedlite history 1. There was an Accessory shoe on camera to mount a device, and a centre-pin contact to fire the flash. All settings made on-flash. The camera did not know what they were. The camera became more aware of flash settings.
Settings still on-flash. Canon implemented an off-camera system using a Master flash to drive one or more slaves using light-pulse coding. The camera was taught to read the flash settings, and act accordingly. FEC was added to the camera. There was no provision on the camera for setting Manual output levels, so there was no need to implement a path in the flash' s hotfoot. A better interface was required, and in-camera.
Canon designed the flash control menus so that for the first time, ALL settings could be read from itself rather than the flash. This meant major design requirements for the flashes. All flash settings needed to be digital. A path through the flash hot-foot to the processor had to be created which could set, not just read the flash settings. Settings could now be made either on-camera, or on-flash for legacy flashes.
So, the only flashes which can be controlled by flash menus are ones that have the required communication through the hot-foot. The light-pulse receiver system is not involved. Recharge or replace as required.
Some E-TTL parameters will not be saved, such as group fire ratio. Press the foot firmly forward to ensure all contacts are made securely. The locking pin will engage. Set up transmitter using camera menus: Keep the transmitter in Remote Control mode the default mode. Press the foot firmly forward to ensure all contacts are secure. The channel and group indicators light briefly. The Status indicator turns steady red.
The flash may fire once when turning the on or off. The channel indicator will light for several seconds to indicate the current channel. On-Top Flash A flash can be installed on the transmitter on top of the camera. It is effectively direct-connected to the camera.
It must be separately set on-flash as auto or as a manual level. The zoom setting of the On-top flash can be different than offcamera flashes. Set the On-top flash zoom to Auto, so that it zooms with the lens. Using the camera flash control menu, set Manual zoom 24mm — mm so that off-camera flashes keep a constant setting. Factory defaults will be set. Testing the Lighting Setup The setup can be tested to ensure that all devices are powered up and that the communication is working.
In addition, actual lighting outputs can be metered if manual levels are being used. The flashes in the selected group will fire a test flash. Set Manual levels or Multi , either by Flash Control menus or by on-flash settings.
The test fire will be at the level as it is displayed on the LCD of the flash. The test button will not change the setting of the flash. If Remote control is being used, first press half-shutter to ensure that settings are applied E-TTL will produce a pre-flash, which may confuse the light meter. Trigger with any on the same channel. It may be a hand-held one. They will stay in a live update state until the menu session ends. In Mix mode, the on-flash settings take priority. E-TTL and Manual can be mixed.
This is the Factory default mode. The last-used setting is remembered during power-down. Requires a Type A camera for Manual settings. Channel indicator does not stay lit. Set Fire Ratio to The camera will call for pre-flash, evaluate power levels required, and produce a normal exposure from the two Group B flashes, with fill from the on-top flash.
FEC and Ratio can be controlled from camera. Set Flash Mode to Manual. Use B as main, C as background, A as on-camera fill. Group outputs can be set and adjusted remotely as required. Mix Control Mode Creative lighting scenarios can be implemented by switching the system to Mix mode.
It will then stay lit. The settings of the flash take priority. A type B camera defaults to hi-speed sync. If its mode is Manual or Multi, it won' t. More Creative Scenarios Augmented ambient Indoor event photographers may use flashes high on light-stands and set to bounce light off the ceiling, or to provide hair- or rim-light. CH indicator shows steady green.
Yongnuo YN622 YN-622C User Manual
Manual zz. Some additional samples were received; my thanks to Yongnuo. Copyright This document is copyright C D Bolton - and all moral rights are asserted. It may be shared and quoted freely, but not altered.
Yongnuo YN-622C User Manual