Use of multiple flash lights..

Paul Morgan (Challenge Team)

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6 Feb 2012 - 11:20 PM

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Buy far the simplest and best flash accessory has to be a lead even for the none strobist.

http://www.amazon.co.uk/Lastolite-Camera-Flash-Cords-Single/dp/B002L6G9CO/ref=pd...

I don`t think you unit has manual controls built in for operating off camera.

triumphv8

4

7 Feb 2012 - 12:16 PM

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You can get devices which account for the pre-flash before triggering.

A workaround on some is to use the exposure lock button * on Canon and 'force' the pre-flash, then wait a few seconds until your slave has re-cycled to press the shutter.

Paul Morgan (Challenge Team)

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7 Feb 2012 - 9:49 PM

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Quote: i have canon 550d with no manual flash control. So is it possible to use a slave flash because there will be a preflash for ettl metering which could fire the slave at the wrong time?

I`m not familiar with the Canon system, unless your camera can connect to your flash via wireless ( some Canon bodies can now do this) your going to have problems, the alternative is a flash lead like I linked to.

classcams

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10 Feb 2012 - 8:51 AM

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Quote: I got an optical trigger

with Canon, it only works once - then you've to take the trigger off and put it back on again

it's more annoying than gridlock on the M25


Quote: I got an optical trigger

with Canon, it only works once - then you've to take the trigger off and put it back on again

it's more annoying than gridlock on the M25


Quote: I got an optical trigger

with Canon, it only works once - then you've to take the trigger off and put it back on again

it's more annoying than gridlock on the M25


Quote: Are radio trigger worth considering?

I have made a few versions of optical trigger. They are reliable but only good for short distances (studios). But you only need to push a reset switch to start again. Good for 2 or 3 flashes from master gun. Wireless triggers can be a bit dodgy if they are cheap ones.

triumphv8

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11 Feb 2012 - 6:42 PM

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You'll find most of the cheap ones are pretty much the same but branded differently, Photix is common, mine are Jiansu, but what you see on EBay and what you get may be different. I work in electronics and have taken mine apart, they look OK, the components are probably exactly the same as used by the expensive ones. Look for the 100ft range, less false triggers than the 30ft range.

You still need to be careful with voltages though, I think the Vivitars are around 180v and there is no rating given for the triggers. If they fire with triacs, no problem they are usually rated to 400v so no problem, but if it's with transistors then it could be as low as 70v and therefore not last long.

Anyone else used high voltage flashes with radio triggers ?

Just Jas

10

11 Feb 2012 - 11:46 PM

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My newest Vivitar 283, bought in 2004, has a trigger voltage of 9vdc.

The old one, bought in 1978, has a trigger voltage of 250vdc.