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Photo Forum / Digital Photography / DSLR Cameras / April 2007Anyone using a Wein safe sync on a Rebel XT?
Anyone using a Wein safe sync on a Rebel XT? I bought one and can't get it to work, anyone know a trick? Thanks blah > Anyone using a Wein safe sync on a Rebel XT? I bought one and can't get > it to work, anyone know a trick? Thanks blah Why do you need a Wein for XT ? It has a trigger voltage limit of 250. There are very few flash guns with higher value. In any case, what happens if you insert it between the hot shoe and the flash ? Does the flash fire at all ? If not, then very likely the Wein is faulty. Get it replaced.  Signaturegautam >> Anyone using a Wein safe sync on a Rebel XT? I bought one and can't get >> it to work, anyone know a trick? Thanks blah [quoted text clipped - 3 lines] > if you insert it between the hot shoe and the flash ? Does the flash fire > at all ? If not, then very likely the Wein is faulty. Get it replaced. I used one until I found out I didn't need it.. worked fine except for the "wiggle" in induced in mount. DP Are you sure about 250v? How can I verifly this? Wein is new and does not seem to be working. Thanks >> Anyone using a Wein safe sync on a Rebel XT? I bought one and can't get >> it to work, anyone know a trick? Thanks blah [quoted text clipped - 3 lines] > if you insert it between the hot shoe and the flash ? Does the flash fire > at all ? If not, then very likely the Wein is faulty. Get it replaced. >>> Anyone using a Wein safe sync on a Rebel XT? I bought one and >>> can't get it to work, anyone know a trick? Thanks blah >> Why do you need a Wein for XT? It has a trigger voltage limit of >> 250V. There are very few flash guns with higher value. > Are you sure about 250v? How can I verifly this? The 250V limit quoted by Majumdar is for the PC-connector on higher end EOS, /not/ for the hotshoe. AFAIK, the Rebel XT doesn't have a PC-connector, and Canon has never publicly stated what the safe limit for its hotshoe is, but 250V is generally considered unsafe. For more on this, see: http://hannemyr.com/photo/flash.html#tv Signature- gisle hannemyr [ gisle{at}hannemyr.no - http://hannemyr.com/photo/ ] ------------------------------------------------------------------------ Sigma SD10, Kodak DCS460, Canon Powershot G5, Olympus 2020Z ------------------------------------------------------------------------ > The 250V limit quoted by Majumdar is for the PC-connector on higher > end EOS, /not/ for the hotshoe. AFAIK, the Rebel XT doesn't have a > PC-connector, and Canon has never publicly stated what the safe limit > for its hotshoe is, but 250V is generally considered unsafe. http://photonotes.org/articles/eos-flash/index2.html#trigger claims: - 6 Volts max on the hot shoe with most EOS cameras, says Canon. - Damage to the circuits can be cumulative and sublte, so a 'it works' test is no guarantee nothing's pitting connectors etc. and reagarding the PC connector http://photonotes.org/articles/eos-flash/index3.html#pc says: - EOS cameras which can handle up to 250 volt flash units: EOS 1D, 1Ds mark II, 1D mark II, 20D, 20Da, 5D, 350D/Digital Rebel XT/Kiss N Digital, 30D, EOS 400D/Rebel XTi Digital/Kiss X Digital. You may also find http://www.geo.tu-freiberg.de/docs/eos-faq/3flash.html#q21 of interest, though it's more than a decade old by now. -Wolfgang > Are you sure about 250v? How can I verifly this? Wein is new and does not > seem to be working. Thanks Stop top posting. Turn the camera completely to manual and make sure the Wein synch is properly seated. I don't know about the Canons, but Wein on a Nikon will only work with full manual everything, including, if I remember correctly, turning the flash to manual in a menu, no TTL metering. > Anyone using a Wein safe sync on a Rebel XT? I bought one and can't get it > to work, anyone know a trick? Thanks blah What is the voltage from the sync on the flashes? (You can measure this with a voltmeter (DC), but you need a steady hand. What does the Rebel XT manual say for sync voltage? Signature-- r.p.e.35mm user resource: http://www.aliasimages.com/rpe35mmur.htm -- r.p.d.slr-systems: http://www.aliasimages.com/rpdslrsysur.htm -- [SI] gallery & rulz: http://www.pbase.com/shootin -- e-meil: Remove FreeLunch. Do I measure from the sunc cord and trigger with the test button? >> Anyone using a Wein safe sync on a Rebel XT? I bought one and can't get >> it to work, anyone know a trick? Thanks blah [quoted text clipped - 3 lines] > > What does the Rebel XT manual say for sync voltage? > Do I measure from the sunc cord and trigger with the test button? Measure at the camera end of the cord. The voltage is there all of the time, so no need to hit the test button. (The camera shutter "shorts" the circuit to triger the flash). You need steady hands and likely you will trigger the flash accidently. Don't worry about it. ... do point the flash away from your face. Do not touch (skin) the metal parts of both probes as the voltage may be very high (although most monolights have pretty low sync voltage, some go into the hundreds of volts). Squeeze one of the probes against the outside "shield" with thumb and forefinger. Avoid touching any other metal part with your skin! Maybe you can do the squeezing with a clamp or clothespin... Gently, accurately probe the center pin. It may be easier to have someone read the voltage for you while you probe. Don't worry about +ve or -ve voltage indication. If it's low (less than 7 volts) then you do not need the safe sync at all. Read the camera manual to find the safe voltage level. Don't top post Cheers, Alan >>>Anyone using a Wein safe sync on a Rebel XT? I bought one and can't get >>>it to work, anyone know a trick? Thanks blah [quoted text clipped - 3 lines] >> >>What does the Rebel XT manual say for sync voltage? Signature-- r.p.e.35mm user resource: http://www.aliasimages.com/rpe35mmur.htm -- r.p.d.slr-systems: http://www.aliasimages.com/rpdslrsysur.htm -- [SI] gallery & rulz: http://www.pbase.com/shootin -- e-meil: Remove FreeLunch. > > Anyone using a Wein safe sync on a Rebel XT? I bought one and can't get it > > to work, anyone know a trick? Thanks blah [quoted text clipped - 3 lines] > > What does the Rebel XT manual say for sync voltage? Doesn't specify, at least that I can find. SignatureYou need only reflect that one of the best ways to get yourself a reputation as a dangerous citizen these days is to go about repeating the very phrases which our founding fathers used in the struggle for independence. -- Charles A. Beard >> > Anyone using a Wein safe sync on a Rebel XT? I bought one and can't get it >> > to work, anyone know a trick? Thanks blah [quoted text clipped - 5 lines] > >Doesn't specify, at least that I can find. Anything up to at least the battery voltage (7.2V, IIRC - you should check the label yourself) should be perfectly safe. SignatureW "Some people are alive only because it is illegal to kill them." . | ,. w , \|/ \|/ Perna condita delenda est ---^----^--------------------------------------------------------------- I'm getting 7.5 as soon as I touch the cord, and then it drops to 4.98.... What does that mean, should I beware? Thankx blah >>> > Anyone using a Wein safe sync on a Rebel XT? I bought one and can't >>> > get it [quoted text clipped - 9 lines] > Anything up to at least the battery voltage (7.2V, IIRC - you should > check the label yourself) should be perfectly safe. >I'm getting 7.5 as soon as I touch the cord, and then it drops to 4.98.... >What does that mean, should I beware? Thankx blah Sounds fine. >>>> > Anyone using a Wein safe sync on a Rebel XT? I bought one and can't >>>> > get it [quoted text clipped - 9 lines] >> Anything up to at least the battery voltage (7.2V, IIRC - you should >> check the label yourself) should be perfectly safe. SignatureW "Some people are alive only because it is illegal to kill them." . | ,. w , \|/ \|/ Perna condita delenda est ---^----^--------------------------------------------------------------- >Anyone using a Wein safe sync on a Rebel XT? I bought one and can't get it >to work, anyone know a trick? Thanks blah I use one and it works good. Before I bought it, I did some research on the Web and found some reports of sample defects with these things. So I brought the camera and flash in to the store with me, to test them out. The clerk was a bit indignant.... but sure enough, the first one off the shelf didn't work. The second one did. Bubba |
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