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Subject 
Author 
Date 
Re: Spot meter 
Steve Nicholls  15:12 12 Nov 07 
Using a flash for testing.  
Jorge Gasteazoro.   10:13 7 Nov 07 
Re: Using a flash for testing.  
Ben Wilbur  10:58 7 Nov 07 
Re: Using a flash for testing.  
Jorge Gasteazoro.   11:22 7 Nov 07 
Re: Using a flash for testing.  
Ben Wilbur  14:41 7 Nov 07 
Re: Using a flash for testing.  
Jorge Gasteazoro.   14:55 7 Nov 07 
Re: Using a flash for testing.  
Barry Wilkinson  2:16 8 Nov 07 
I think this is a really good idea Jorge. I have been considering more consistent ways of exposing film for testing.

I have been 'playing' around with LED's and a polycarb diffusion sheet in a box. The spectrum problem is also there with LED's. I was thinking of trying some of the new tri-colour LED's and electronically controlling the output power. Maybe a flash tube would be more suitable?

In my initial trials with LED's I found it quite difficult to get and even illumination across the polycarb sheet. Small LED's and a 4x5" area is not as easy to evenly illuminate as one would think.

I wish I had more time, perhaps this winter?

Let us know how you get on.

Thanks

Barry


 
Re: Using a flash for testing.  
Miles Nelson  20:01 8 Nov 07 
Re: Using a flash for testing.  
Philippe Bedfert  4:50 8 Nov 07 
Re: Using a flash for testing.  
Jorge Gasteazoro.   6:14 8 Nov 07 


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