Eeeeek!!! Braun F910 Pro unit...

[J A Mortram]

Was given this HUGE monster by the ever gracious and total star, Mark at Norfolk Photographic... and as he said... it came complete with free dust ; ) it's a Braun F910 Pro unit... any thoughts or views anyone?... I never even heard of this system before...

Cheers,

Good health to all,

Jim

[Don Hoey]

Jim,
You did not mention in your pm that Mark gave you TWO of them.

A shot or two of the dryfit battery pack would be interesting, or have they had a diy replacement of that.

Looking forward to a hands on next time you visit.

Don

[Don Hoey]

A google tranlated link to info on this item
http://translate.google.com/translat...Den%26hs%3Drqv

Don

[andy153]

Hi Jim, I don't know what you or Don think, but I had a great big Cullman from the same era and was thinking of trying it on my D70 when I first started Digital. At the time I was using it quite happily on an old Nikon EL 2 - Both Cullman and Nikon advised against - something to do with the power of the thing shorting out the D70 electronics.

[Don Hoey]

Its all about trigger voltage Andy.

My Nikon SB80-DX trigger voltage is 4.89volts, Metz 45CL3 15.5volts, and the ancient Vivitar 283 a whopping 275volts .

So with any older kit it is worth measuring that with a multimeter before attaching to a modern camera. Different manufacturers give different max voltages for this, but as a general rule 6volt is about max for a modern camera.

To measure the trigger voltage, power the flash up and measure the volts across the centre terminal, and the ground terminal which is to the side of the hotshoe mounting.

Don

[yelvertoft]

Originally Posted by J A Mortram

Was given this HUGE monster by the ever gracious and total star, Mark at Norfolk Photographic... and as he said... it came complete with free dust ; ) it's a Braun F910 Pro unit... any thoughts or views anyone?... I never even heard of this system before...

Cheers,

Good health to all,

Jim

Jim, before you let it anywhere near your camera, it is essential you know what the trigger voltage on this unit is. I don't see this model listed in the usual database:
http://www.botzilla.com/photo/strobeVolts.html

Get some fresh batteries, put them in, switch it on, and VERY, VERY carefully measure the voltage across the centre contact on the bottom of the unit and the "earth" contact that normally connects to the side lugs on your hotshoe using a voltmeter. Set the voltmeter to measure VDC and set the range to full scale deflection of 500V. If the needle/scale doesn't move then set a lower range until you can get a reliable reading.

See the data on safe voltages in the link given above to determine if it's safe to attach to your hotshoe.

Some of these old units can have trigger voltages of several hundred Volts DC, which hurts (a lot) if you touch it when doing the measurement. If you don't have a voltmeter, find a local electrician that can do this for you.

You beat me to it Don.

[Saphire]

I used this website to check all my old flash guns before I contemplated using them on my digital, unfortunately those units are not on there.
http://www.botzilla.com/photo/strobeVolts.html

[Don Hoey]

Originally Posted by yelvertoft

................. If you don't have a voltmeter, find a local electrician that can do this for you.

That'll be me then Duncan.

I did a case full of Jims dads old stuff yesterday, and a good job too. The worst one registered 375 volts .

Don

[Don Hoey]

Originally Posted by Saphire

I used this website to check all my old flash guns before I contemplated using them on my digital, unfortunately those units are not on there.
http://www.botzilla.com/photo/strobeVolts.html

If you still have them I will do a search Christine.

Safest bet with old units is to use a slave to trigger them with. All manual exposure though, to prevent the pre flash firing them.
Foxy did a thread on his experiences with a slave. I will do a search and link it.

Don

[Don Hoey]

Originally Posted by Don Hoey

........Foxy did a thread on his experiences with a slave. I will do a search and link it.

Don

Here we go
http://www.worldphotographyforum.com...ead.php?t=1859

Don