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DPChallenge Forums >> Tips, Tricks, and Q&A >> Help - Using an external flash
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06/08/2006 06:02:36 AM · #1
So here at work tomorrow we've got a "celebrity" coming for a charity "world Cup at Work" sort of day (don't get too excited, its more likely to be of the local radio personaility than an 'actual' celebrity :-) )

Anyway as the unofficial company photographer (my cameras bigger than anyone elses!) I've been asked to get some pics of the events.

The 350d onboard flash is not really adequate so I was going to use an old Vivitar 283 and do some ceiling bouncing. But I haven't a clue where to start with camera settings.

Does anyone have links to tutorials etc for using an external flash with a 350??

Any help is much appreciated

(PS yes I've checked the flash's voltage won't fry my camera!!)
06/08/2006 06:12:14 AM · #2
I'd suggest setting the camera to ISO 200 f/8 and a shutter speed of about 1/100, manual mode. Mount the flash, I believe that you set the dial on the flash so that it lines up with ISO 200 and f/8 (I had one of these, but cannot remember the exact details of the dial) and snap away. If the pictures come out a little dark, set the aperture setting on the flash to a larger number (i.e. effectively telling the flash that you are using a smaller aperture, so that it puts out more light), if they are overexposed, set the aperture on the flash to a smaller number. The thing to remember is that it is the aperture (and, indeed, the dialled-in aperture value on the flash unit) that affects the flash exposure, not the shutter speed.

Get some practice shots and you should be OK. To get more of the ambient lighting in the shot, possibly consider going to ISO 400. Then get some more practice shots. Once you've got it set up, snapping away is easy and automatic.

Good luck.
06/08/2006 06:12:25 AM · #3
Flash Photography with Canon EOS Cameras
06/08/2006 06:19:59 AM · #4
sice its not dedicated thats where the fun begins,. If yiu are working inside it aint much of a problem use manual mode in the camera,and use the auto system on the flash as yu would with a film camera { I assume the vivitar has auto settings}.

fill flash iis a bit trickier I would use "A" mode choose a F stop one higher than the auto setting on the flash and you should get a one stop difference from ambient light to flash .

For eg if you have an auto setting of F5.6 on flash use f8 on camea assuming your sync speed is high enough .

Hope this helps, I used this system with my fuji 7000 and it worked ok
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