Hi Guys i'am a Newbie and wanna be Strobist., just few question. I'm using a canon 400D with a Vivitar 285HV with Flash Waves Radio Trigger (limited to 180 shutter speed; sorry can't afford the Pocket wizard). i've try it outdoor the result is a bit ok but whenn it comes indoor it didn't work good mostly i did'nt focus and cannot trigger my Vivitar indoor with dim light or less light. is it maybe to my camera setting. Any advice on what exposure ( shutter speed-ISO-aperture setting without a lightmeter) to use
recommended Exposure setting . Salamat..

Isagani

Set your flash to Manual shooting mode.

Get the Guide Number of your flash from the owner's manual. Divide the GN by the distance from the flash to the subject. Use the resulting figure as your f/stop.

Take note of what ISO was used to compute for GN and adjust the f/stop accordingly.

Shutter speed does not affect flash exposure.

Cheers!

Jo Avila

P.S.

I just finished telling the same thing to my basic photography students last night.

indoor it didn't work good mostly i did'nt focus and cannot trigger my Vivitar indoor with dim light or less light.

Is it just the flash that isn't firing, or is it that the camera doesn't fire either? What I get from this description is that the AF keeps seeking, and so the camera never fires off a shot. Try switching to manual focus just to see if this is the problem. If this isn't it, please try to explain what you're trying to do, and what does (or doesn't) happen.

As for settings, I think Sir Jo covered that already. Like he mentioned, the shutter speed doesn't affect flash exposure, but that doesn't mean it isn't important. It affects your ambient, and that makes it important for balancing your lights. See this link (http://flickr.com/photos/itsjustanalias/1443830018/) for an example of how this works.

Set your flash to Manual shooting mode.

Get the Guide Number of your flash from the owner's manual. Divide the GN by the distance from the flash to the subject. Use the resulting figure as your f/stop.

Take note of what ISO was used to compute for GN and adjust the f/stop accordingly.

Shutter speed does not affect flash exposure.

Cheers!

Jo Avila

P.S.

I just finished telling the same thing to my basic photography students last night.


Thanks Sir Jo, I will try it as soon as i i return in Manila. I'm here in Pangasinan. i only brought my cam, work related they don't allowed me to bring my staff.

Gani

Is it just the flash that isn't firing, or is it that the camera doesn't fire either? What I get from this description is that the AF keeps seeking, and so the camera never fires off a shot. Try switching to manual focus just to see if this is the problem. If this isn't it, please try to explain what you're trying to do, and what does (or doesn't) happen.

As for settings, I think Sir Jo covered that already. Like he mentioned, the shutter speed doesn't affect flash exposure, but that doesn't mean it isn't important. It affects your ambient, and that makes it important for balancing your lights. See this link (http://flickr.com/photos/itsjustanalias/1443830018/) for an example of how this works.

Thanks Bro, yah it is the Af i think anyway thanks

Thanks Bro, yah it is the Af i think anyway thanks

suggestion:

in extreme cases when lighting is too dim to AF, try using a flashlight to achieve AF.

good luck!:)


~rey

Set your flash to Manual shooting mode.

Get the Guide Number of your flash from the owner's manual. Divide the GN by the distance from the flash to the subject. Use the resulting figure as your f/stop.

Take note of what ISO was used to compute for GN and adjust the f/stop accordingly.

Shutter speed does not affect flash exposure.

Cheers!

Jo Avila

P.S.

I just finished telling the same thing to my basic photography students last night.

Now I know what GN is for hehehe...