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Canon EX 600 RT flash and ST-E3 RT control

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... I could take Canon EX 600 RT radio controlled flashes and the ST-E3 Rt control unit into my hands thanks to Canon Hungária, and I could also buy one set for myself in the Canon Pro shop of Camera Kft (Canon service).We collected everything just in time, thus we could start the testing with two control units and four flashes. ...
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Novelties

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... Canon Speedlite EX 600 RT really offers the freedom of flash photography.The new flash is often mentioned as the successor of Speedlite 580EX II, but that’s not completely true. ...
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Photo: © Tamás Imre

Canon EO S 5D Mark III, EF 200mm f/2L IS USM 1/200 sec f/10 ISO 800
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... In fact the point of the flash is that it can perceive the signals of the transmitter (ST-E3) even from distance of 30 metres, which can be freely controlled from the camera, so it is suitable for hide photography and outdoor photography where the parts of the system can perceive each other even in sunshine as they are radio controlled.. ...
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... The performance has been enhanced up to 60 key number (at ISO 100-200 setting), and the focal-length was expanded for 200 mm lenses as well, so distant subject could be illuminated creatively.If you turn down the diffuser of the flash it can illuminate the angular diameter of even a 14 mm focallength, extra wide-angle lens. ...
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... This is the first time we receive a new filter adapter for the play of the white balance.It give great freedom as we can use it for the further balance of the flashed subject or the background light or just to the contrary. ...
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Weather-proofness

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... Speedlite 600EX-RT and Speedlite ST-E3- RT transmitter was particularly designed for professional nature photographers, with the same robust and weatherproof structure of EOS- 1D X camera.Either placed into the hotshoe or controlled externally coldness, heat or humidity cannot damage the device as the design of the seals make it suitable for photography extreme conditions. ...
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... Superb: that’s what they write about every professional equipment and that is true.The average user might not be able to exploit these opportunities but those who like pushing the boundaries can do it as there are places where we can take advantage of these extra facilities. ...
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Synchronization of the flash system

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... The synchronization of Canon EX 600 RT and Speedlite ST-E3-RT control system works as follows.First you have to switch on the ST-E3-RT control unit mounted on the camera which instantly gets into master mode. ...
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Photo: © Tamás Imre

Canon EO S-1D X, EF 200mm f/2L IS USM 1/200 sec f/11 ISO 400
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Costa Rica rain forest

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... I tested Canon EX 600 RT flashes and controls in different extreme conditions, not caring about the rain, mud and high humidity.May it sound a bit rough, but it was my goal to establish such conditions in which flashes has not been used so far. ...
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... The test shots were taken at.25-30 C° and at 90 % humidity. ...
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Summary

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... Canon extended far forward compared to other producers’ flash systems with this radio controlled technology.All accessories have been added, I did not miss anything. ...
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... Tester: Tamás Imre . ...
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