[photo-3d] Using flash on a Nimslo

[ers <ers@xxxxxxxxxxxx>]

Message: 6
Date: Thu, 18 Jan 2001 17:51:48 -0600
From: Linda Nygren <lnygren@xxxxxxx>
Subject: Re: Using flash on Nimslo

It is f5.6 (wide open for this camera), which is why I seldom use my
Nimslo with flash. Not enough depth of field for my taste, especially
since I mostly do closeups with this camera. -Linda

"Joseph R. Schlauch" wrote:
>
> Recently obtained a Nimslo and am taking it for a test drive. Question:
> When using a flash (vivitar 283 in this case) what F-stop should I set the
> flash? (asa 100 film) What is Nimslo's default f-stop with flash attached?
> Thanks again, Richard (NY)

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On the Burder modification (Burdlo) there's a button added that locks the
camera at f11 or thereabouts. Looking at the circuit diagram, pin 6 of the IC
that runs the camera is looking for the dedicated Nimslo flash. One thing that
would cause no harm to the camera is to try the old trick of using your 
Vivitar
and putting a bright battery powered LED in front of the exposure sensor. I'd
suspect the camera would be fooled and the combined shutter/aperture would
run at a high fstop. However, there could possibly be synch problems or the fl
ash may not trigger at all-- you'll
just need to try it. The manual states: "The electronic flash synchronization 
delay circuit shall cause the flash to fire when the magnet release command is 
given. The Green LED shall override the Low-Light (Red) LED with an external 
signal from the "Opti-Lite", of +9v Max. When "Optilite" is ready, 25 micro A 
Max. is applied to the signal contact of the flash connector."

If anyone out there has found the correct way to force the camera to use a 
minimum aperture with flash via an electronic hack, now might be a good time 
to
clue us in. If not, it's a good project to tackle.