PentaxMX_50f17_RolleiRPX25_027

Recently I did a group test of slow speed fine grain B&W film stocks (Adox HR-50, Rollei RPX-25, and Ilford Pan F+ 50). Here are the results. I keep the camera, lens and development consistent across the rolls.

 

My assessment of Rollei RPX-25 is very similar to Adox HR-50:

- Very fine grained, high resolution and very sharp

- Not ISO 25, more like ISO 50 (rumor said it is Aviphot 80)

- High in contrast, thus need to be careful with lighting (flatter the better) and processing (very gentle agitation)

- Film base is clear and colorless, good candidate for reverse processing

 

Technical info:

 

- Camera: Pentax MX

- Lens: SMC Pentax-M 50mm f/1.7

- Film: Rollei RPX 25

- Development: Adox FX-39 II, 1+9, 7 min at 68F

- Scanning: Nikon Coolscan V with Nikon Scan

- PostPro: Adobe Lightroom

Done