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Messages 251 to 260 of 653 (Total: 653) First | Prev | Next | Last
Subject 
Author 
Date 
film and paper testing 
Mitch Morrow  11:51 5 Jun 06 
Re: film and paper testing 
Phil Davis  17:06 5 Jun 06 
Re: film and paper testing 
Mitch Morrow  13:36 6 Jun 06 
Thinking of giving BTZS a try need help 
Kevin Saitta  3:08 5 Jun 06 
Re: Thinking of giving BTZS a try need help 
Phil Davis  16:22 5 Jun 06 
Kevin --

The light source requirements are:

1 - Fairly neutral color
2 - Uniform illumination of an area of the baseboard at least 12" in diameter.
3 - Baseboard intensity of at least EV 4 as measured on a white card with a spotmeter set at ISO 100.
4 - Precision control of exposure time at 1/2-second or less.

I'm not familiar with your Heiland unit but I don't think testing with either yellow or magenta light would be very satisfactory. If it has an alternative cold light head you should be able to use it.

Can you find a copy of the BTZS book? It contains complete instructions.
 
Arista Edu Ultra Paper test 
Steve Nicholls  18:33 26 May 06 
Cold light head? 
Steve Nicholls  0:38 17 May 06 
Re: Cold light head? 
Phil Davis  7:38 17 May 06 
Re: Cold light head? 
Steve Nicholls  17:09 17 May 06 
Spot Meter Densitometer Paper Reading 
John Phillips  17:37 7 May 06 


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