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> Adox CMS 20 11 |
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#11
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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 12:59 PM. |
#12
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[QUOTE=Rob Archer;138015]
Quote:
https://peakdistrictwalks.net/higher...ne-crash-site/
__________________
"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. |
#13
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[QUOTE=GoodOldNorm;138018]
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#14
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[QUOTE=Rob Archer;138019]Rob, make sure you have good waterproof boots on it gets quite muddy/boggy up there, flask and sandwiches also essential.
There used to be a good fish n chip shop in Glossop, don't know if it is still trading, like you say it is worth a day out when covid restrictions have been lifted. I have been up there on my own in inclement weather, I had an emotional moment thinking of all the poor lads that died. Can be a strange place if you let your imagination run away with you, its not called Bleaklow for nothing.
__________________
"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. |
#15
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Very good, Rob. Also heard that it is rewarding once you master it.
Frank |
#16
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I used a roll years ago but was not impressed not used since. It has been that long I cannot remember which dev I used it was not the one recommended.
Don't be put off give it a go it maybe to your liking.
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Mitch http://photomi7ch.blogspot.com/ If you eliminate the impossible whatever remains no matter how improbable must be the truth. |
#17
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Quote:
I guess Adox CMS20ii is an excellent film once one gets used to its quirks but, for me personally, it doesn't give me anything that PanF+ doesn't, and that's a lot easier to work with. |
#18
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__________________
Mitch http://photomi7ch.blogspot.com/ If you eliminate the impossible whatever remains no matter how improbable must be the truth. |
#19
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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. [/QUOTE] Rob a thread and video involving Adox CMS 20 and POTA has prompted this question: What do you mean about "makeup less"? For instance if you had only one 35mm film to develop so needed only 250ml of POTA how much of the above ingredients would you use? Thanks Mike |
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