Elegant... as long as that disk isn't subject to dirt.
Chuck Norcutt
On 8/19/2011 6:46 PM, Tim Hughes wrote:
> 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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