APX 400 is a panchromatic, true 400 speed black and white film.
| Brand | Name | Formula | EI | Time | 1st Min Agit. | Agit every min | Source | Tested |
|---|---|---|---|---|---|---|---|---|
| Adox | Rodinal | 1+25 | 400 | 11.5 | Datasheet | |||
| 1+50 | 320 | 21 | Datasheet | |||||
| Iford | Microphen | stock | 400 | 8 | Datasheet |
- WTF Photography: Is Agfa APX 100&400 any GOOD?
- Too much contrast, difficult to pull details from highlights and shadows
- Scratches easier than other films
- Naked Photographer: Agfa APX 400
- This is a true 400 speed film
- More pronounced, noticeable grain versus Tri-X
- Skin tonal separation not as good as Tri-X