I have several promaster flashes that either go Full power or 1/16, but I'd love to have more range, ie a power knob does anyone know of any way this could be done?
I could have sworn I saw a tutorial years back!
Jul 11 13 02:30 pm Link
Glens Falls, New York, US
Silverlight Images wrote:
The good news is, it's very easy to do that from an electrical design standpoint. The flash runs off of a capacitor(not the batteries), and it simply discharges a certain amount of power when you fire. Putting a variable resistor in the middle of that circuit is pretty easy; the flash still drains as much power as a full power shot, the recycle time is the same, but only 1/2 or 1/4 of the power goes to the flash tube.
Jul 11 13 06:16 pm Link
Dallas, Texas, US
A Vivitar 285 has this option http://m.adorama.com/newui/search.aspx? … 13139046h2
Jul 11 13 06:33 pm Link
Richmond, Virginia, US
Not a change in the flash but if you need to lower the output they do make ND gels. I personally have not used the ND gels only color gels but I do know several manufacturers make them and it would seem to be a cheap easy way to lower output on the speedlight.
Jul 11 13 07:31 pm Link
Zack Zoll wrote:
Thanks Zack! The ones I have are fairly disposable but the Nikon sounds interesting I'll check it out.
Jul 11 13 08:04 pm Link
Oh yeah! I have one that works pretty well (though I forgot it has that option as mine got damaged.
Jul 11 13 08:06 pm Link
A good option, I'd probably need to get a gel holder since I can never get the colors on/off that easily.
Jul 11 13 08:08 pm Link
Chico, California, US
Which is nothing more than replacing the cds (sensor) with a 100K ohm potentiometer
Jul 11 13 09:04 pm Link
Boston, Massachusetts, US
Not sure if your Promasters support the quench pin, but if they do, look at the Radiopopper JrX Studio triggers. You need a Nikon or Canon RPCube but they work fairly well and you get to control your knobs at your camera instead of off-cam flash...
Jul 12 13 06:55 am Link
New York, New York, US
ND gels on top of a Sto-Fen work. If you don't want the omni, you can tape them in place.
Jul 12 13 05:20 pm Link
Great ideas! ... sounds like I'm gonna have a busy weekend!
Jul 12 13 08:01 pm Link