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Re: [OM] what happend to my flash shots?!

Subject: Re: [OM] what happend to my flash shots?!
From: ClassicVW@xxxxxxx
Date: Fri, 25 Jan 2002 10:55:31 EST
On Fri, 25 Jan 2002 Tom@xxxxxxxxxxxxx wrote:

> 1. Some light from the diffuser reached the sensor, shutting it off too 
> soon.

I'd have to disagree with this. I've employed Acer's method before (with the 
curved piece of opaque plastic). Mine was from a plastic milk gallon which 
may be a lot thinner and more 'clear' than the alcohol bottle he used. I've 
had mine curved to actually allow light to spill over the top and bottom of 
the plastic piece, and I've had no problem with the light being directed into 
the sensor. Maybe my curve is closer to the flash and doesn't bounce it back? 
I make the plastic *a bit* shorter (top to bottom) than the flash tube's 
height so *some* light gets out directly, but the "hot" part of the tube is 
softened thru the plastic.

I also suspect that Acer's plastic interfered with the flash output more than 
the reported 1/3 stop the flash meter told him. I'd bet a roll of film it was 
closer to two stops considering the material used. That, and if it was in a 
large reception hall, did him in.

George S.




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