Zoom on 600rt not responding?

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Feb 9, 2013
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Just wanted to check and see if anyone else has had issues with their 600 rt zoom not responding? I push the zoom button, then select it, but turning the wheel does not bring up any zoom range number or increase or decrease the range. It just stays "---." I checked my custom functions and auto zoom is not selected. Zoom function works just fine on my other 600s. This is the same flash I just sent into canon to have the bulb replaced when it burnt out, so it may be that this particular 600 is just a dog. Any other ideas on what the cause could be, or should I just send it in?
 
Tara Copp said:
Just wanted to check and see if anyone else has had issues with their 600 rt zoom not responding? I push the zoom button, then select it, but turning the wheel does not bring up any zoom range number or increase or decrease the range. It just stays "---."

One possibility is that the built-in diffuser (the plastic screen with the prisms) isn't fully retracted, this can happen if dirt is behind it.

The other possibility obviously is that your flash is broken, the zoom of my older 600rt is also reacting much more sluggish than my brand new 600rt - so it seems the flash zoom mechanism might not be built to last... unfortunately you cannot completely disable the flash zoom afaik.
 
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