[OM] Re: [OT] A tip for Canyon flash shooters

Subject: [OM] Re: [OT] A tip for Canyon flash shooters
From: Chuck Norcutt <chucknorcutt@xxxxxxxxxxxxxxxx>
Date: Mon, 04 Dec 2006 12:05:49 -0500
More compliated than just a beam or two.  It projects a 
vertical/horizontal red and black cross-hatch pattern with the vertical 
component appearing to be longer and broader than the horizontal 
crossing lines.  I had to go check it in a darkened room to see it.

Chuck Norcutt

Tim Hughes wrote:

> I wonder whether there is anything special about the autofocus assist, ie 
> geometry of beam, must
> come on at a certain moment etc.  Maybe a few narrow beam hi power, infrared 
> LEDS hooked up to the
> low voltage output of a quantum pack and left on continuously, would also 
> work?  Somebody with
> time on there hands could give it a try?  You could then use any flash 
> including high power studio
> flashes etc.
> Actually I wonder same question for Oly products, that use flash LED focus 
> assist? 
> Do some of them use two beams with some sort of triangulation for example.
> Tim Hughes

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