Film Processing and Equipment    Main Page

 

 

 

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.

 

Exposures - Exposures Zone I - V were taken from a white wall illuminated via reflected sunlight.  Exposures VII- IX were taken using a clear blue sky.  In camera meter was used for all exposures.

 

 

Best development times for FP4+ ASA 125 in HC-110 as per data:

 

 

* Dilution H should be used for compensation.