avatar

Canon Speedlite 600EX-RT with radio control

Finally has a major manufacturer of a DSLR system put the radio transceiver for communicating between DSLR body and flash where it belongs: Inside the flash itself. Congratulations to Canon for being first!

The Speedlite 600EX-RT flash, with an expected price tag of USD 629 is now in stock at B&H (there is even an USD 50 instant rebate until Sep. 12). The 2.4 Ghz two-way radio communication comes in addition to optical control. Like the Speedlite 580EX II, it can be used as both a master for other compatible Speedlites, and as a remote (slave) unit.

Canon Speedlite 600EX-RT

The new system do more than replace light signalling with radio for greater range and reliability. For the first time ever, remote flash units can call home and tell the master when they've recycled. This means that if you have remote Speedlites in awkward places, you no longer have to guess when they're ready again.

With the new radio-based system, the number of groups have been increased from 3 to 5. For this to work, you must use a Canon DSLR from 2012 (i.e. EOS 1D X, EOS 5D mark III or EOS 650D/T4i). With an older DSLR, you're limited to three groups.

The new flash is not more powerful that its predecessor, the Speedlite 580EX II. However its zoom head now goes from 20 mm to 200 mm coverage (35mm format). Its maximum guide number is higher, but the guide numbers for 24 mm to 105 mm are the same as the 580EX II. Compared to the 580EX II, the new flash has an improved AF assist beam that is compatible with Canon's new 61-point AF. The hot-shoe design has also been improved for increased dust and water resistance. A new gel holder, and a gel sensor, will make mounting of gels easier, and also ensure automatic adjustment of white-balance when a colour gel is used.

While Canon's flash control system has been extensively redesigned for the 600EX-RT, the new Speedlite is fully backwards compatible with the existing line of Speedlites. The new 600EX-RT can work in both radio mode and legacy optical mode (but not at the same time). There is no problem using the 600EX-RT with 580EX II, ST-E2, etc. as long as you stick with optical signalling in wireless mode.

For use as master on top of the camera, there is also a new Speedlite Transmitter ST-E3-RT. This new unit also uses Canon's new radio based flash control protocol. Unlike the flash, it does not support the legacy optical flash control protocol.

If you want to subscribe to this thread and get an email every time the thread is updated, you need to register. Registration is free and carry no obligations.

One response:

avatar
INFORMATION USING IR TO PHOTO CHANGES TO PAINTINGS AND WRITING NOT SEEN BY NAKED EYE

COULD YOU SUGGEST A DIGITAL CAMERA, NEW OR USED, THAT WOULD BE REASONABLY PRICED TO ACCOMPLISH VIEWING HIDDEN CHANGES, OR WRITING TO PAINTINGS?

IN ADDITION ANY INFORMATION AS TO TIME, SETTINGS, FILTERS ETC. WOULD BE MUCH APPRECIATED UNFORTUNATELY MY CURRENT OLD FINEPIC S602 ZOOM CAMERA CAN ONLY BE USED FOR A MAX TIME EXPOSURE OF 15 SECONDS.

LOOKING FORWARD TO RECEIVING YOUR ADVICES.

THANK YOU!

RICHARD C

Leave a comment.

Title (optional):

Comment:

Enter the caracters below into the Verify-field to indicate that you are not a spambot.
To avoid having to enter a verify code, register at the site and log in before posting.
CAPTCHA Image new image 2
Verify code:  (Required.)
Your name:   (Required.)
Your email:   (Will not be published.)

Notice: If you feel that you have found inappropriate content on this site, please let us know by contacting us with the with the URL of problematic page. TIA.

This page is from: http://dpanswers.com/roztr/content_show.php