Adox Scala 50 in Ilfotec DD-X

EI is the speed the film was rated at when shooting. Evidence says where each time comes from: the manufacturer’s own data, a named test, a compilation or several agreeing reports (community consensus), or one person’s report. Times marked “not yet verified” come from secondary sources and haven’t been checked against a manufacturer datasheet. Where sources give different times, every one is listed and marked “sources differ”.

Calculated from the 20°C (68°F) time using Ilford’s temperature compensation factors, not taken from a datasheet. Most B&W developers behave well between 18–24°C (64–75°F).

Ilfotec DD-X

Fine grain, high acutance, full film speed, normal contrast. Full emulsion speed with excellent shadow detail.

Adox Scala 50

The HR-50 emulsion packaged and rated for B&W reversal processing in the ADOX SCALA kit to make black-and-white slides; successor to Scala 160.

Notes on this pairing

• Negative processing. Adox says Scala 50 can be developed as a negative using HR-50 times; time from the HR-50 datasheet.

• ADOX Atomal 49

  8:30

  Stock · EI 50 · 20°C

• Ilford HP5 Plus

  9:00

  1+4 · EI 400 · 20°C · 4 variants

• Ilford Delta 3200

  9:30

  1+4 · EI 3200 · 20°C · 6 variants

• Ilford Delta 400

  8:00

  1+4 · EI 400 · 20°C · 6 variants

• Ilford FP4 Plus

  10:00

  1+4 · EI 125 · 20°C · 3 variants

• Harman Technology Kentmere Pan 400

  11:30

  1+4 · EI 400 · 20°C · 2 variants

• Harman Technology Kentmere Pan 100

  10:30

  1+4 · EI 100 · 20°C · 3 variants

• Ilford Ilford Delta 100

  10:30

  1+4 · EI 100 · 20°C · 4 variants

• Kodak Double-X 5222

  7:00

  1+4 · EI 250 · 20°C

All 22 films in Ilfotec DD-X