Users of this film, can you comment on it? What do you like about it? Tonally, reciprocity, etc...What sets it apart from other 100 speed films? Thank you.
Hello Andrew,
I do like the following characteristics of CHS 100 II:
- very sharp
- very high resolution for a film with conventional emulsion technology (non T-grain film), see below
- very nice tonality
- very versatile, because it can be also reversal developed as BW transparency film with excellent results
- excellent price-performance ratio.
When the first run was introduced in 2014 I also included CHS 100 II in my scientific resolution test programme. Here are the results (system resolution with Zeiss ZF 2/50; object contrast of 1:4 = two stops; the first value is for clearly seperated lines, the second one for the limit when still a difference in contrast is visible; developed in Spur HRX):
Adox CHS 50: 90 – 100 Lp/mm
Adox CHS 100: 80 –90 Lp/mm
Adox CHS 100 II : 100 – 110 Lp/mm
Fomapan 100 : 75 – 90 Lp/mm
Ilford FP4+: 75 – 90 Lp/mm
Kodak Plus-X: 80 – 100 Lp/mm
Adox Silvermax: 105 – 115 Lp/mm
Films with modern emulsion technology:
Ilford Delta 100: 130 – 140 Lp/mm
Kodak T-Max 100: 135 – 150 Lp/mm
Fuji Acros 100: 115 – 130 Lp/mm.
Best regards,
Henning