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June 29.CHS 100 II.Thornton

Looking at the difference in performance of Adox CHS 100 II compared to Kodak TMY, which I used the previous day for a similar photograph: flic.kr/p/2rdyiNw

 

CHS 100 II has a more "graphic" look to it: more contrast, a more abrupt transition from the dark shadow to the near-white tones. But it separates all of the values beautifully and has great acutance (Acutance measures how abruptly tonal transitions occur at the boundaries between different areas of an image, like where a dark object meets a lighter background. It describes perceived sharpness due to edge effects, not actual sharpness).

 

Rolleiflex 2.8E Planar

CHS 100 II rated at 25 ASA (with medium yellow filter) and developed in Thornton 2-Bath: 4.5 + 4.5 minutes.

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Uploaded on June 30, 2025