Rollei ATP compared to Kodak Technical Pan in Rodinal

General notes

Rollei ATP 1.1 (V1) and Kodak Technical Pan were exposed at 25 ISO and developed in Rodinal 1+300 for 12 minutes 20°C/68°F.


Rollei ATP 1.1 (V1), 25 ISO


Kodak Technical Pan, 25 ISO

Enlargements

Rollei ATP 1.1 (V1), 25 ISO

Rollei ATP 1.1 (V1), 25 ISO

Kodak Technical Pan, 25 ISO

Kodak Technical Pan, 25 ISO

Note: NO sharpening or manipulation has been applied to these enlargements.

Conclusion

Contrast and tonality are not as good as with ATP DC developer, but overall Rodinal produced very good results for both films at 1+300. As the full framed images show, Technical Pan retains details in the light gray tones better than ATP film. This is evident in the second brush from the bottom, where the tip of the bristles blows out into the highlights. This fall off was much less evident when the film was developed in ATP DC. The bristles of the brushes also appear softer and show more tonality with Technical Pan. The noticeable tonal difference in the brush handle at the bottom (it is a light orange color) shows that while Technical Pan is capable of retaining greater tonality in the light grays and soft highlights, in this developer it is either compressing the mid-tones or does not provide as true a chromatic rendering when compared to ATP.

The enlargements show similar resolution in both films, but ATP renders fine detail in a more pleasing way than Technical Pan. Highlight/shadow contrast is also better with ATP, as witnessed by the sharpness of the numbers in the UPC bar code, and the light numerals reading clearly against the dark background on the lower brush. One feature of the negatives, which were developed identically, is the obvious dust particles which can be seen on the Technical Pan negative which lacks the anti-static qualities of the newer ATP film.