On a slightly different tack , but somewhat related, the way some of the sunpak
flashes set their very wide auto exposure flash aperture range, is to have a
fixed high sensitivity photo sensor, and place a continuously variable ND
filter in front of the sensor to set a wide range of auto-apertures. The
aperture selector, just rotaes the strip of variable density material in front
of the sensor aperture. The variable density is created by varying the density
of fine black dots. Simple and elegant.
Tim H.
--- On Wed, 8/17/11, Chris Trask <christrask@xxxxxxxxxxxxx> wrote:
From: Chris Trask <christrask@xxxxxxxxxxxxx>
Subject: Re: [OM] mount mod: nikon/canon to OM
To: "Olympus Camera Discussion" <olympus@xxxxxxxxxxxxxxxxx>
Date: Wednesday, August 17, 2011, 12:37 PM
>
> On 8/17/2011 11:35 AM, Ken Norton wrote:
> > Well, you can always put a nd filter on the lens to get the ambient
exposure
> > below 1/60 then blast the snot out of the subject with a T45.
>
> I know. That's the way most of these were done except a T-32 was
adequate.
>
I've been on this list for less than an hour and I've already learned
something. I'd spent all sorts of time and energy looking for low-power
flashes and resorted to a pair of T-20s with diffusers. And I always have
an ND-2 and ND-4 with me. Duh!!
Chris
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