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  1. #11
    stradibarrius's Avatar
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    Here are a few shots of the CMS 20 @ 20- Rodinal 1+50 11 min @68deg.
    Too much contrast for me.
    If I used 1+100 dilution would that reduce the contrast?
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  2. #12

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    Congratulations Barry!
    At least You got your hands on the CMS 20! However, its is hard to comment without knowing what lens You used, filters and how often You inverted the tank during development.. etc etc.
    I like how the Spruce looks thou. Did You shot some Flame Maple backs?
    1:100 or even 1:200 should bring down the contrast.
    Regards,
    Georg

  3. #13
    stradibarrius's Avatar
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    I used a Nikon F4 and a Nikon 70-210 AFD At f/4 or5.6.
    I inverted Gently 10 time in the first 30 seconds and 2 time every 2 minutes thereafter. The one shot of the completed violin top I thought was really nice. The others were not what I had intended.
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  4. #14

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    The combination of Rodinal 1:50 + microfilm such as Adox CMS 20 is normal to show high contrast.
    I am not familiar with SLR lenses.. so, have no idea how this one should shoot.
    Do You have examples in similar lightning environment?
    Regards,
    Georg

  5. #15
    Axle's Avatar
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    Hm, I have two rolls of the stuff coming my way from Freestyle, I'll give this a go!
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  6. #16
    Thomas Bertilsson's Avatar
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    Quote Originally Posted by stradibarrius View Post
    Here are a few shots of the CMS 20 @ 20- Rodinal 1+50 11 min @68deg.
    Too much contrast for me.
    If I used 1+100 dilution would that reduce the contrast?
    Using 1+100 dilution does not, in and of itself, lower the contrast. Rodinal is a very powerful developer, and if you dilute the developer more, but develop longer, you get basically the same contrast index with 1+100 as you do with 1+50.
    The trick here is, as with all other films, to develop less time, in combination with adjusting your agitation. If you contrast is too high at 18 minutes, you simply need to reduce time until the contrast isn't too high anymore. 1+100 or 1+50 will not matter much, unless you're getting into developing times of less than 5 minutes at 1+50 dilution, in which case 1+100 makes sense because you then automatically extend the developing time. Sacrifice one roll where you do a series of clip tests, developing at different times. Reduce developing time until contrast is right. That's basically all there's to it, 1+50 or 1+100 matters little; the principle is exactly the same.
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  7. #17

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    What is really required for this type of film is an extreme low contrast compensating developer, not Rodinal. Even if you can get half-reasonable contrast out of CMS-20 using Rodinal at some ridiculous dilution with minimal agitation, you're looking at an abysmal EI and poor tonality. The best I could come up with for this film was a working speed of around EI 3 using TD-3 developer, which produced far better results and uniformity than Adotech. Better, but far from good.

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