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Photo Forum / Film Photography / 35 mm / October 2004Using Vivitar flash w/Canon10d
Anyone have any practical experience using an aftermarket, old fashioned automatic thyristor type of flash with a Canon 10D body? I've been told that there are potential problems with the trigger voltage. Like to hear from anyone who has actually tried using such a thing. I'm not overly pleased with using the dedicated Canon flash. Thanks. John Emmons > Anyone have any practical experience using an aftermarket, old fashioned > automatic thyristor type of flash with a Canon 10D body? I've been told that > there are potential problems with the trigger voltage. You NEED to read this: news:10n8008kfiq6b01@corp.supernews.com Thanks for the enlightening info. I think a Wein safe sync is in my future. And maybe a new Vivitar 283. John Emmons > > Anyone have any practical experience using an aftermarket, old fashioned > > automatic thyristor type of flash with a Canon 10D body? I've been told > that > > there are potential problems with the trigger voltage. > > You NEED to read this: news:10n8008kfiq6b01@corp.supernews.com >From: "John Emmons" johncyn@worldnet.att.net >Anyone have any practical experience using an aftermarket, old fashioned >automatic thyristor type of flash with a Canon 10D body? I've used a Vivitar 285 a couple of times, no problems. >I've been told that >there are potential problems with the trigger voltage. Have also heard this but don't know exactly which models are problematic. >I'm not overly pleased with using the dedicated Canon flash. I also have a Canon 550EX and it's ten times easier to use than the Vivitar, plus I get E-TTL with it for very effective fill-flash, which is mainly how I use it. Also second-curtain sync, wider coverage, more power and a high-speed sync mode that lets me shoot at any shutter speed up to 1/8000th sec. Why are you not "pleased" with the Canon flashes? I like mine a lot. Bill Seems way overly complicated, and that's coming from someone who's used Canon equipment since the AE-1 was still a pretty cool camera. I just don't need all that stuff anymore, the bulk of my on-camera flash work is just grip and grin kinda stuff these days. Anything else I set up real strobes. Thanks for the info. John > >From: "John Emmons" johncyn@worldnet.att.net > [quoted text clipped - 17 lines] > > Bill > Anyone have any practical experience using an aftermarket, old fashioned > automatic thyristor type of flash with a Canon 10D body? I've been told > that > there are potential problems with the trigger voltage. MEASURE the trigger voltage by connecting a voltmeter between the flash contacts (edge and middle of shoe) with the flash turned on and ready, but not attached to the camera. If it is over 6 volts, use a Wein SafeSync between flash and camera, to keep the camera's circuitry from being fried. > Anyone have any practical experience using an aftermarket, old fashioned > automatic thyristor type of flash with a Canon 10D body? I've been told that [quoted text clipped - 3 lines] > > I'm not overly pleased with using the dedicated Canon flash. Check the Sigma DG EF-500 Super. $149 at Adorama. > Anyone have any practical experience using an aftermarket, old > fashioned automatic thyristor type of flash with a Canon 10D body? If it is a thyristor flash, chances are that control and high voltage will be separated... that's after all one of the things the thyristor is there to do :-P > > Anyone have any practical experience using an aftermarket, old > > fashioned automatic thyristor type of flash with a Canon 10D body? > > If it is a thyristor flash, chances are that control and high voltage will > be separated... that's after all one of the things the thyristor is there > to do :-P My Sunpak AUTO411 is a thyristor (as per the manual) and it has a trigger voltage of 192 Volts (as measured by me :-)). Happy Trails me > My Sunpak AUTO411 is a thyristor (as per the manual) and it has a > trigger voltage of 192 Volts (as measured by me :-)). Bad flash! Bad flash! ;-) >>My Sunpak AUTO411 is a thyristor (as per the manual) and it has a >>trigger voltage of 192 Volts (as measured by me :-)). > > Bad flash! Bad flash! ;-) Flash trigger voltage is fine to me ... of course I use Minolta...  Signature-- rec.photo.equipment.35mm user resource: -- http://www.aliasimages.com/rpe35mmur.htm -- e-meil: there's no such thing as a FreeLunch.-- |
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