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APX-25 in HC-110

 

 Density Measurement using Macbeth TD-502 

 
Bd+f  = .26  
Zone I II III IV V VI VII VIII IX
Target densities- based diffusion light source. .10     0.60-0.70   1.25-1.35  
10 min, 1:41, 20C .12 .28 .45 -- -- -- -- 1.35  
                   
                   
                   
 

 

Development Stats:  Two reel stainless steel tank, invert and twist agitation.

 

1.  No Pre-soaking

2.  Dilution mixed from concentrate.

3.  Initial agitation for 1 minute then 5 seconds every minute, (2 inversions per minute).

3.  Stop with water, four dumps about one minute

4.  Fix 6 min TF-4.  Agitation 30 seconds per minute

5.  Wash 20 min

6.  Distilled H2O sprayed on while film is hanging, (works great)

7.  Hang dry

 

Densitometry - Measurements taken from center of negative using Macbeth TD-502.  Edge densities greater then center densities.  This is a function of the lens.  Other lens have different patterns.

 

 

 

Best development times as per data:

 

Development

Time (min)

  1:41 Dilution  
N-1 --  
N 10 min, 20C  
N+1 --