I viewed this with some interest but couldn't figure out what's being
tested that's relevant to actual work. Digital TTL requires a pre-flash
that is fairly weak and easily swamped by bright daylight. I don't have
any of this flash automation stuff so don't have any first hand
experience. But I do believe Will Crockett who tells me that digital
daylight TTL fill flash is not very reliable beyond about 6 feet due to
the limitations of pre-flash brightness. So, what good is it that I can
trigger a flash from 600 feet away that the camera can't accurately
measure beyond 6 feet? His actual recommendation for daylight fill
flash if you really want exposure automation is to use flash controlled
auto mode. (ala T-32 or Vivitar 285)
I can understand possibly wanting to take a moderately wide angle shot
in a 150 foot long ballroom to capture it all but I don't need TTL for
that. Once the lights are setup the exposure from a long distance is a
constant. It's up close where the lights are coming from different
directions and distances where exposure determination is difficult.
Just shaking my head and wondering why.
Dr. Flash
usher99@xxxxxxx wrote:
> Been told by reliable sources that Dr. Flash has retired for the
> evening so I'd thought I sneak this post in.
>
> PocketWizard has not been sitting on their hands while RadioPopper
> developed their somewhat less expensive
> radio triggers that will transmit TTL signals:
>
> http://www.pocketwizard.com/news_events/news/controltl_press_release/
>
> Some comparison:
>
> http://radiopopper.com/blog/2009/03/14/pocketwizard-flex-tt5-mini-tt1-vs-radiopopper-px-video-review/
>
>
> Radiopopper was strongly thinking of supporting the Oly flashes for the
> E-x. I spoke with them on the phone a few months ago,
> but they were still just trying to get the products out the door.
> Perhaps it does already, but haven't seen that on the site yet.
> It only required a small software tweak according to the tech.
> Mike
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