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> Adox CMS 20 11 |
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Adox CMS 20 11
I wonder if anyone here has tried Adox CMS 20 11 film in 35mm. If so how did you get on with it?
Alan |
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Mike |
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Two years on, has anyone used Adox cms 20 11 ? Thoughts and advice please.
__________________
"Tea is surely the king of all drinks. It helps against the cold, it helps against the heat,against discomfort and sickness, against weariness and weakness". Heinrich Harrer. |
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I bought four rolls from Speed Graphic earlier in the year, along with the matched developer (a bottle does four rolls). I exposed one roll rated at ISO 12 and the other three at ISO 20.
If you scan the negatives, you can see that the film is capable of very high resolution, which in my opinion is significant only if you want to print larger than usual - and also if you use lenses that are up to the job. As I found exposing at those speeds a bit of a nuisance back in April/May, it's not a film I'd want to use as routine. There could well be subjects, though, that would benefit from a film like this, used always with a tripod (I didn't, mostly). |
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Yes the speed is a problem a lot of the time in Northern climes which our U.S. friends in the likes of Texas and Arizona etc find difficult to believe
However from examples I have seen this film does seem capable of beating most ordinary films in Medium Format cameras and appears to be even close to a match for 4x5 Mike |
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I have been reading up stuff on APUG/Photrio about the film.
I have been curious about using it too - more out of curiosity than a serious consideration for regular use. Everyone raves about the films grain and resolution but it appears (surprise, surprise) it requires quite sensitive handling when being processed. Apart from the obvious requirement for its unique developer, extreme care it needed with acidic stop bath (very dilute stop is required) as well as a very short fixing time (due the thinness of the emulsion). Then great care it also needed when wiping the film at the start of the drying process - it seems highly sensitive to scratching and one person was alluding to problems of wiping the emulsion completely off the film backing - by using an un-wetted film squeegee. A couple of other things from reading the films Technical Data Sheet - because it is on a clear (PET) film base, it is sensitive to light piping and gentle care is needed with developer agitation - as it foams easily. So in summary :-
I am never sure what to make of all the comments on APUG, some of the contributors don't seem capable of upping their game when handling specialist films like this - being used to the almost bullet proof products supplied for Ilford and Kodak. If you have a go with it, I for one, would be interested in your findings. Martin Last edited by Martin Aislabie; 7th October 2020 at 09:43 AM. |
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Mike |
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A few scans of my latest attempts with it. They're scans of prints on Ilford Multigrade RC DeLux except for the peppers which is on Art300. As you can see, even with POTA the images are very contrasty.
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And I really like the contrast that you have managed to get with it. As for me wondering what POTA was, and I'm assuming I wasn't the only one to wonder, it means, 'PHENIDONE EXTENDED RANGE DEVELOPER (POTA)'. OR, on one post they say something different to that: 'First of all, what is POTA? According to The Film Developing Cookbook (Anchell & Troop, 1998, Focal Press, 165 pp. ISBN-13: 978-0-240-80277-0), POTA was developed by Martin Levy and the formula published in 1967. The acronym POTA stands for Photo-Optics Technical Area at the Ft. Monmouth military installation where Levy was employed.' Terry S Last edited by Terry S; 25th January 2021 at 01:43 PM. |
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[QUOTE=Terry S;138013]A good job, you've done there Rob.
And I really like the contrast that you have managed to get with it. As for me wondering what POTA was, and I'm assuming I wasn't the only one to wonder, it means, 'PHENIDONE EXTENDED RANGE DEVELOPER (POTA)'. OR, on one post they say something different to that: 'First of all, what is POTA? According to The Film Developing Cookbook (Anchell & Troop, 1998, Focal Press, 165 pp. ISBN-13: 978-0-240-80277-0), POTA was developed by Martin Levy and the formula published in 1967. The acronym POTA stands for Photo-Optics Technical Area at the Ft. Monmouth military installation where Levy was employed POTA is cheap and easy to make and a LOT cheaper than Adox Adotech IV - the recommended dev for CMS20ii. Water (35 DegC) 500ml Sodium Sulphite 30g Phenidone 1.5g Water to 1000ml Use it within an hour. 1l will do 3 films or you can make up less. I rated it at 12 ISO and developed it for 12 minutes at 20 DegC but, looking at the negs I suepect 6 ISO and a dev time of maybe 10 minutes would have been better. I'll experiment with it again someday. I believe it was originally developed to photograph nuclear blasts - not a regular subject for me! Last edited by Rob Archer; 25th January 2021 at 01:59 PM. |
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