|
![]() |
|
LinkBack | Thread Tools | Search this Thread |
![]() |
#1 |
Senior Member
Join Date: Jun 2006
Posts: 1,288
|
![]()
I'm lookign around for some older flash units to use for some experimenting with strobist lighting.
Some of those have trigger voltages too high for a digital camera circuit. So, since I don't want the risk of burning my camera, I borrowed a voltmeter from my university. (studying computer science has its advantages) Now I have this little Starblitz 160M that I have used before with my *ist DL before I got my Sigma 530 DG ST, just assuming it was safe since it was such a small flash, with a guide nr. of only 16 ![]() Since it has a built in pc-sync port I thought it could be used as a small flash to ligth the background, so I tested it with the voltmeter. Boy, was I surprised! Turns out this little bugger puts out a whopping 270 Volt!!!!:shock: But like I said, I have fired this thing off the hotshoe of my ist DL before, and everything still works! (won't try it again though...the risk is too great) Pentax must really make their circuitry robust. I'm 90% sure a Canon would not have survived it... The big morale: Test your flash units, no matter how small they are, or you could fry your camera! Tom P.S.: Maybe useful info to some others: I tested a few other units: Sigma 530 DG ST: obviously safe, since it was made for digital: 4,6 Volt Cobra 700AF: Made for analog cameras, but safe: 4,7 Volt Pentax AF-18: A small flash unit, NOT safe: approx. 40 Volt |
![]() |
![]() |
Sponsored Links |
|
![]() |
#2 |
Senior Member
Join Date: Aug 2006
Location: NW. England
Posts: 1,202
|
![]()
Hi Tom, This site has plenty ofuseful information, may be of use to you.
These high sync voltage flash units can be safely used as slaves, usingthe fairly cheaply available optical triggers. I have a couple I've used this way.... Jack http://www.botzilla.com/photo/strobeVolts.html |
![]() |
![]() |
![]() |
#3 | |
Senior Member
Join Date: Jun 2006
Posts: 1,288
|
![]()
jachol wrote:
Quote:
![]() the page they link to for pentax users has a post which would confirm my findings. One of them claims the pentax system can take voltages up to 600V...I wouldn't recommend it though... Still, the fact that my ist DL survived multiple exposures with a 270V flash, must mean that it's pretty rugged. I've been thinking about getting a few of those slave units, or a wein safe sync unit. Tom |
|
![]() |
![]() |
![]() |
#4 |
Senior Member
Join Date: Jun 2006
Posts: 1,288
|
![]()
Just bought an old Vivitar 285 and tested it.
Looks like I'm lucky ![]() (do keep in mind that you should always test these older units. Some have much higher voltages) Which means it's safe to use, and will be triggered by the Cactus V2s (theyve been reported not to trigger high voltage flashes.) Awesome, a good manual flash, and I only payed 10 euros for it ![]() Got a Nikon SB-20 on the way aswell. That should at least get me started. Tom |
![]() |
![]() |
![]() |
Thread Tools | Search this Thread |
|
|