>
> Tim wrote:
>
> > However,one issue not yet mentioned by all the resposes to this
> > thread
> > is that if you are not careful you can easily exceed the
> > ability of the
> > camera to cut off
> > the flash soon enough, yielding over exposures. Higher power
> > flashes are
> > usually worse
> > in this respect!
> >
>
> The specs for the Oly flash units specify both maximum and minimum working
> distances, see for example
> http://www.veluwen.demon.nl/om-sif/flashphotogroup/t20.htm
>
> I have done a little testing with a T20 and over exposure is definitely a
> problem when you get closer than the minimum distance.
>
> Wayne Harridge
> Ivanhoe, Victoria, Australia
> http://www.geocities.com/Paris/Louvre/6152/
My experience with the macro flashes is that, with the 4T, you had better
not go under the minimum distance-f-stop combination. However, with the 2N,
I can go an additional stop. I think the analog trigger circuit in the 2N
is quicker to react than the digital one in the 4T.
Paul Farrar
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