Intro to Photography
Film Developing Instructions for Black and White Film
using Sprint Chemistry
PREWET
Water 1 minute at 68 degrees/ Constant agitation.
Start timing when you begin filling the tank with water. Empty the tank at
the end of allotted time.
FILM DEVELOPER
10 minutes at 68 degrees
Measure 20 oz for a plastic (2 reel) tank.
Begin timing. Pour developer into the tank. To dislodge air bubbles, tap the
tank lightly on the counter to release air bubbles. Agitate 5 seconds every
half minute after the initial first 60 seconds of agitation. Rap once firmly
against the bottom of the sink immediately after the initial 60 seconds of
agitation. Continue to agitate film every 30 seconds for the remainder of
the time. When development time is completed, pour developer down the drain.
Time: varies with film and temperature (and brand developer), see chart below
for Kodak Tri-X film*
STOP BATH
30 seconds
Measure 20 oz for a plastic (2 reel) tank.
Agitation: Constant.
Reuse - pour Stop back into the same container when finished.
FIX
4 minutes
Agitation: 5 seconds every half minute after the initial first 60 seconds
of agitation.
Reuse - pour Fixer back into the same container when finished
ELIMINATOR/FIXER REMOVER
2 minutes
Agitate 5 seconds every half minute after the initial 30 seconds of agitation.
Return Eliminator to container when finished.
Reuse - pour Eliminator back into the same container when finished
WATER WASH
10 minutes
Fill, empty, and refill the tank with water for
.
PHOTOFLO/WETTING AGENT
1 minute
Mix about ½ capful of wetting agent to a tank filled with water. Agitate
for a few seconds.
HANG TO DRY
Hang from a metal clip in a drying cabinet. Place a metal clip (or crushed empty film cartridge) at the bottom of the hanging film.
CLEAN UP
Rinse all reels and tanks. Shake off excess water, dry and return to storage places.
Note
Temperature. Should remain consistent throughout the process including
the wash. 68 is ideal, but adjust the time for temperatures other than 68
degrees, see chart *.
Timing. Should begin when the tank is completely filled with
solution. Begin pouring out each solution about 10 seconds before the time
is over.
Agitation. Should begin immediately after the tank is filled. Gently
rotate the tank twice, invert it twice, and rotate it again - following this
sequence for the entire agitation. Do not over agitate.
Be consistent!!!
* developing time for Kodak Tri-X at various temperatures. For other films
check on the Sprint website http://sprintsystems.com/film_chart.htm
Temperature (degrees F) / Times (in minutes)
Film 68
71.5 75
Kodak Tri-X 10 8 6 ½
