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List price is $641.00, but sure it worth. It’s quite some times listed in amazon. Many user find it that the interface is simple and easy to work with. The product have 5 stars rating.
Buy new: $641.00
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Customers tagged this products : digital slr, canon, strobist, flash

NEW Qflash 5d-R -(”d” for digital and “R” for Ratio)- is the latest evolution in Quantum’s proven Qflash portable flash line.

Highlight features that I pulled from the technical specification :

Full dedication - Connect a Qflash 5d to a camera using a Dw series QTTL Adapterand make Qflash a powerful, fully dedicated flash that mimics the features of camera manufacturers’ flashes.

Wireless TTL with Fill-flash - When teamed with a FreeXWire system, Qflash receives your camera’s TTL exposure commands wirelessly. Wireless fill-flash offsets are set on the D and Dw series QTTL adapters, or on the camera.

Wireless Linked Auto with Qflash - Ratios Set up an on-camera Qflash and one or two remote Qflashes with FreeXWires. Control the ratios of the remote Qflashes wirelessly from the panel of the on-camera Qflash. All Qflashes track the f/stopof the camera as you change it.

150 wattseconds flash power (versus 50 ws typically for shoe mount flashes.)

25 precision 1/3 stop Auto settings  

Other fuctionality is this new 5d-R series support wireless control of all dedicated camera-flash functions-Manual, TTL, Auto, Auto-fill and TTL-Ratio-up to 500 ft. away. It’s suitable fr both digital and film camera systems. Parabolic reflectors produce softer, cleaner light. And they quickly interchange for bare bulb, wide angle, diffused, and telephoto reflectors. This new QFlash series are smaller and lighter than their predecessors. 

Technorati Tags: digital slr, canon, strobist, flash