D11 at wrong dilution

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zeiss
Posts: 4
Joined: Mon Oct 03, 2016 3:40 am

D11 at wrong dilution

Post by zeiss » Sun Oct 09, 2016 6:14 am

In the third edition of the book, David wood recommends the use of D11 as first developer for reversal, but in a 1:3 dilution during 12-15'. This has been widely discussed at APUG and other places, because this dilution doesn't work and almost everybody thought it was a typo. At the fourth edition, it appears again uncorrected.

Is it possible for Mr. Wood to shed some light on this?

Miroinchina
Posts: 1
Joined: Sun May 28, 2017 6:48 pm

Re: D11 at wrong dilution

Post by Miroinchina » Sun May 28, 2017 6:50 pm

Now, I am using D67+D19 for reversal processing on Ilford FP4+ film, the results are pretty good.

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John_In_Phoenix
Posts: 5
Joined: Sun Dec 31, 2017 9:51 am
Location: Phoenix, Arizona

Re: D11 at wrong dilution

Post by John_In_Phoenix » Sun Dec 31, 2017 10:23 am

I have tried D11 without much success. A fellow by the name of Jens Osbahr published a paper back in 2007 titled "A Black And White Reversal Process-In Memory Of Scala" which I have been using successfully for a number of years. Ive processed quite a number of film types from the original Scala (I have a frozen stash) to Eastman 5222 (5222 is not the best candidate for reversal) You can adjust the formula to suit your film and processing technique. When ADOX introduced its version of Scala I did a comparison and developed the new and old Scala in the same tank (see below). The film was processed using the process described for Scala in Mr. Osbahr in his paper. You can find it here http://www.ars-imago.com/productinfos/o ... _films.pdf
ADOX Agfa Comparison 1.jpg
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