Darkroom
☀
Light
Print
Enlarge
Dev
Meopta
Durst 170M
Durst 130M
Kodak
sec
Exposure - half-stop steps
-2
-
-1.5
-
-1
-
-0.5
-
-0.25
-
+0.25
-
+0.5
-
+1
-
+1.5
-
+2
-
Contrast — Meopta — Ilford MG RC
Grade
Yellow
Magenta
Time
Grades 00-2: Yellow only. Grades 2.5-5: Magenta only. Times adjusted for head.
Original print
Height (cm)
@
Time (sec)
New print
New height (cm)
New exposure time
-
enter values above
Method A: New Time = Old Time x (New Height / Old Height)^2
More accurate than area method when changing print size.
Developer
2:00
tap to start
+
-
:
Stopper
0:30
tap to start
+
-
:
Fixer
3:00
tap to start
+
-
: