Agfa Copex Rapid / Spur DSX ~ 120 Roll FIlm

Agfa Copex Rapid is a low-speed panchromatic black and white film with a nominal sensitivity of ISO 50/18°.

Excellent resolution, very fine grain and excellent acutance are characteristic of Copex Rapid.

Here is some info that we have found:
Spur DSX – 25 in Rodinal 1+100 for 10 minutes
Adox CMS 20: 15 mn
Agfa Copex R: 16.30 mn
Rollei ATP1.1: 18 mn

No presoaking is needed
Inversion tact: steadily during the first 60s, then:

3 times every 3 mn for Adox CMS 20
3 times every 5 mn for Agfa Copex R
3 times every 5 mn for Rollei ATP1.1
Stop bath: 30s
Fixing time: 60s
Final wash: 5 mn

Though we have seen lovely results when processed with low contrast formulae of Caffenol such as this:
500ml Distilled Water at 20 °C
Sodium Carbonate (anhydrous): 5g
Ascorbic Acid (Vitamin C (pure 99%)): 1g
Instant Coffee for Agfa Copex Rapid: 8g

Using agitation as above @ 20c for 15 to 16.5 mins when exposed at 50 to 64asa

Maker says:
Agfa Copex Rapid is recommended to be developed with Spur Modular UR for optimal results. The Parts A1 and B are needed for the absolutely streak-free development of the SPUR DSX/Agfa Copex Rapid roll film; Part C is no longer needed as previously. When Copex is developed with Spur Modular UR, sharpness, fine-grain, exposure latitude, tonal values, speed utilisation are retained by Spur Modular UR developer.

For Black and White Reversal process expose to:
35mm: ISO 50-64
120 Medium Format: ISO 64-80
Development time: 4 minutes