urgent help with vivitar 2500 flash

[blinded]

Hey,

I borrowed a camera for my gig i have to shoot. sorry if I keep this short.

The flash has a red circle, blue circle, manual (which is full power) and a triangle.

I am shooting indoors and I have a super slow lens so it will be set at F4 the whole night with slower shutter speeds. I was wondering what the heck these settings do? I've messed around with them and the aperature settings but it seems my bodies aperature setting has no effect on flash power. I need to leave really soon for the show and my regular body is dead.

Thanks so much

 

[ksmattfish]

The red and the blue are different "auto" settings. Set it on one or the other, and consult the chart on the back (make sure you set it for the correct ISO). There will be a red and blue dot on the chart; the line shows appropriate range. Whatever aperture the dot is over is what you want to use. One is for closer shots, and allows for more DOF, the other will go further, and be a larger aperture.

If you use it on manual, just check the chart for the camera to subject distance, and set that aperture.

I don't know what the triangle is.

 

[blinded]

Thanks!