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Photo Forum / Film Photography / Darkroom / January 2006Dilute acufine chart
I've come across as few cans of acufine that I'd like to use as a 1-shot developer. Are there any time/temp data around for using it at various dilutions? -Lew Acufine is a solvent-type fine-grain developer emat for re-use, not one-shot. Diluting it more than 1+1 or so is not going to give you anything better. I would recommend using it at stock strength or 1+1 at most. > I've come across as few cans of acufine that I'd like to use as a 1-shot > developer. Are there any time/temp data around for using it at various > dilutions? > -Lew > I've come across as few cans of acufine that I'd like to use as a 1-shot > developer. Are there any time/temp data around for using it at various > dilutions? > -Lew Acufine is a solvent-type fine-grain developer intended for re-use, not one-shot. Diluting it more than 1+1 or so is not going to give you anything better. I would recommend using it at stock strength or 1+1 at most. > I've come across as few cans of acufine that I'd like to use as a 1-shot > developer. Are there any time/temp data around for using it at various > dilutions? > -Lew Hi Lew, I can speak from practical experience. These are my times based on zone 1 and zone 8 tests From memory z8 was about 1.28 In a Jobo 1:3 @ 20c Acros 80 iso 7:30 Apx 100 @ 100 iso 8 minutes Thes should give you a starting point. Tonality and sharpness are excellent. You will find the mixed stock keeps for a very long time in full sealed bottles. I divided the US 1 gallon into many smaller bottles. > I can speak from practical experience. These are my times based > on zone 1and zone 8 tests [quoted text clipped - 12 lines] > You will find the mixed stock keeps for a very long time in full sealed > bottles. I divided the US 1 gallon into many smaller bottles. From those results I'd think 1:7 possible with 1/2 again more time. I just ordered a liter of ACU-1, a powder one shot version of Acufine. It will go 1:9. Me thinks even more. Dan On Tue, 10 Jan 2006 16:57:38 -0800, dan.c.quinn wrote: >> I can speak from practical experience. These are my times based >> on zone 1and zone 8 tests [quoted text clipped - 16 lines] > time. I just ordered a liter of ACU-1, a powder one shot version of > Acufine. It will go 1:9. Me thinks even more. Dan Hi Dan, You may find it runs out of steam at that dilution -- try 1:3 it is very fine and good "normal" gradation. Steve > >> In a Jobo 1:3 @ 20c > [quoted text clipped - 7 lines] > > Steve Steve, what's your solution volume using that Jobo? When I mentioned the 1:7 dilution I had 500 ml in mind using the more usual tank with inversion. Certainly a liter of Acufine is good for a dozen rolls. At 500 ml/roll that would be a 1:5 dilution. IIRC, the OP did not give any details of how he developes. There's no more chemistry in 250 ml at 1:3 than in 500 ml at 1:7. Dan On Wed, 11 Jan 2006 14:27:29 -0800, dan.c.quinn wrote: >> >> In a Jobo 1:3 @ 20c >> [quoted text clipped - 16 lines] > There's no more chemistry in 250 ml at 1:3 than in 500 ml > at 1:7. Dan Dan, I tried the dilution in both a stainless steel tank [400ml] and a Jobo [270ml] and found it ran out of energy above the 1:3 dilution. Possibly if you wanted to test it and extend the development time you may maintain the result. Using it in the Jobo the images where very sharp and the contrast was well controlled. [5 minute water bath] I shot with my Hasselblad and my 5x4. I found using a densitometer based on a zone 1 exposure that the developer returned very close to the makers ISO. Results were always consistant and the developer showed no signs of going off in the smaller bottles. IF I could get Acufine here in Australia I would not hesitate to use it as my main developer. Probably 15 - 20 years ago when Acufine was readily available here I used it without dilution and while it was a very good developer I do like the character of it diluted. Thanks to Patrick Gainer's excellent proven knowledge and desire to share that knowledge I have made his Metol/Rodinal substitute and my initial results are very promising. I was very suprised how simple it was to mix. To my eye it is similar [but different] to classic Rodinal in the glass bottles of 40 years ago. I'm not saying it is the same as Rodinal but it exhibits many of the characteristics I recognise over many years of Rodinal use. > Dan, > > I tried the dilution in both a stainless steel tank [400ml] and a Jobo > [270ml] and found it ran out of energy above the 1:3 dilution. MY POINT PRECISELY!!!!! Are you replenishing this stuff? >> I've come across as few cans of acufine that I'd like to use as a 1-shot >> developer. Are there any time/temp data around for using it at various [quoted text clipped - 19 lines] > You will find the mixed stock keeps for a very long time in full sealed > bottles. I divided the US 1 gallon into many smaller bottles. > Are you replenishing this stuff? >> [quoted text clipped - 21 lines] >> You will find the mixed stock keeps for a very long time in full sealed >> bottles. I divided the US 1 gallon into many smaller bottles. No Lew, Use it one shot. I visited a friend in Yosemite in September and had some sent to him. A friend here in Australia gave me some as I hadn't used it for a long time. I didn't want to use it as a stock solution so played around with it as a diluted developer like you would use D76. I particularly liked the results with APX 100. Steve From the back of a rather dusty can of Acu-1 I have dilution's of 1:5 and 1:10 which are rather odd but I guess Rodinal does the same thing with it's weird 1+25, etc. In either case, economical and long keeping, nice acutance. I have a time and temp chart for Acu-1 and gotta tell you, just ignore the published EI's, run your own tests.  Signaturedarkroommike > I've come across as few cans of acufine that I'd like to use as a 1-shot > developer. Are there any time/temp data around for using it at various > dilutions? > -Lew Right, but I'm looking for Acufine, not ACU-1. Thanks. > From the back of a rather dusty can of Acu-1 I have dilution's of 1:5 and > 1:10 which are rather odd but I guess Rodinal does the same thing with [quoted text clipped - 8 lines] >> dilutions? >> -Lew Acufine is not intended for dilution, Acu-1 is. That's what we are trying to tell you! > Right, but I'm looking for Acufine, not ACU-1. > Thanks. [quoted text clipped - 13 lines] > >> dilutions? > >> -Lew > Acufine is not intended for dilution, Acu-1 is. > > That's what we are trying to tell you! > >Listen you ugly troll, The poster has asked for information on using Acufine as a diluted developer. He does not need the permission of a bent withered bridge dweller like you to try a combination that works exceedingly well. If he chooses to go the road of your counsel I'm sure he will address you personally. Your opinions based on all your venomous postings are useless. Acufine is similar to Microphen and Agfa Refinal in characteristics and as such works very well diluted. I can attest to that FACT having used all three developers and not just rabbitted on from under the bridge as people pass by. UC, do you have a website of your photographic work so that you can be assessed by your peers? I have seen your work and have had an opportunity to form my opinion. : The poster has asked for information on using Acufine as a diluted : developer. He does not need the permission of a bent withered bridge : dweller like you to try a combination that works exceedingly well. If he : chooses to go the road of your counsel I'm sure he will address you : personally. Your opinions based on all your venomous postings are useless. : Acufine is similar to Microphen and Agfa Refinal in characteristics and as : such works very well diluted. I can attest to that FACT having used all : three developers and not just rabbitted on from under the bridge as people : pass by. : UC, do you have a website of your photographic work so that you can be : assessed by your peers? I have seen your work and have had an opportunity : to form my opinion. I'm going against my better judgement of ignoring the troll. I wish that we could get back to that here but it's not looking good. I would encourage those attempting to have a conversation with the troll to have a look at his online gallery at: http://www.ilford.com/html/us_english/ILFOPRO/MemberGallery.asp?membername=Micha el+Scarpitti&offset=0 and then decide if he's someone that you want to be taking advice from. I would like to express my appologies to all and once again ask that we join in a united front and simply ignore anything and everything that the troll posts. Signature------------------- Keep working millions on welfare depend on you > : The poster has asked for information on using Acufine as a diluted > : developer. He does not need the permission of a bent withered bridge [quoted text clipped - 19 lines] > I would like to express my appologies to all and once again ask that we join in > a united front and simply ignore anything and everything that the troll posts. Thanks Frank, My opinion on his photographic prowess remains the same. :) Steve Your ignorance is profound. Acufine is NOT intended to be used as a highly-diluted developer. You can ask the manufacturer. Or, you can save time and take my word for it. I have 40 YEARS of experience in B&W photography, more than ANYONE here.. > > : The poster has asked for information on using Acufine as a diluted > > : developer. He does not need the permission of a bent withered bridge [quoted text clipped - 25 lines] > > Steve >Your ignorance is profound. > >Acufine is NOT intended to be used as a highly-diluted developer. True. >You can ask the manufacturer. Not anymore, the original manufacturer is gone, as an entity. The distributor will have to suffice, I suppose. >Or, you can save time and take my word for it. Mmmm, the re's that, too. :D >I have 40 YEARS of experience in B&W photography, more than ANYONE >here.. No, I have 53 years, myself; about the same as Ruichard Knoppow. I think he and I started color darkroom work in the early to mid 50's. Is that right, Richard? I would think Art Kramer has us all beat, if he's still hanging around. >> > : The poster has asked for information on using Acufine as a diluted >> > : developer. He does not need the permission of a bent withered bridge [quoted text clipped - 25 lines] >> >> Steve Well, at least YOU looked. More to your credit. Robert Vervoordt, MFA >No, I have 53 years, myself; about the same as Ruichard Knoppow. I >think he and I started color darkroom work in the early to mid 50's. I don't have any experience. Just a lot of fun ! Actually I'm coming up on 30 years of B-&-W soon. Gosh ! == John - Photographer & Webmaster www.puresilver.org - www.xs750.net >>No, I have 53 years, myself; about the same as Ruichard Knoppow. I >>think he and I started color darkroom work in the early to mid 50's. > >I don't have any experience. Just a lot of fun ! > >Actually I'm coming up on 30 years of B-&-W soon. Gosh ! Hurry up, kid, you're doing great! lol >== > John - Photographer & Webmaster > www.puresilver.org - www.xs750.net Robert Vervoordt, MFA > >Your ignorance is profound. > > [quoted text clipped - 6 lines] > Not anymore, the original manufacturer is gone, as an entity. The > distributor will have to suffice, I suppose. Good enough. > >Or, you can save time and take my word for it. > [quoted text clipped - 5 lines] > No, I have 53 years, myself; about the same as Ruichard Knoppow. I > think he and I started color darkroom work in the early to mid 50's. Good! I did not know that. > Is that right, Richard? > [quoted text clipped - 34 lines] > > Robert Vervoordt, MFA >I would like to express my appologies to all and once again ask that we join in >a united front and simply ignore anything and everything that the troll posts. I would second this emotion however there are those on this group that evidently LIKE having him around even though he causes nothing but controversy and confusion. JD John spake thus: >> I would like to express my appologies to all and once again ask >> that we join in a united front and simply ignore anything and [quoted text clipped - 3 lines] > that evidently LIKE having him around even though he causes nothing > but controversy and confusion. I don't mind him much. Ya know, there's a really easy solution: don't like him? don't read him. SignatureThe only reason corrupt Republicans rule the roost in Washington is because the corrupt Democrats can't muster any viable opposition. > >I would like to express my appologies to all and once again ask that we join in > >a united front and simply ignore anything and everything that the troll posts. > > I would second this emotion however there are those on this group that > evidently LIKE having him around even though he causes nothing but > controversy and confusion. There is no confusion except that caused by the ignorant. There are TWO individuals on this group who generally know what we're talking about: Richard K and I. Any 'confusion' or 'controversy' is caused by those who don't know what they are talking about. > JD > >I would like to express my appologies to all and once again ask that we join in > >a united front and simply ignore anything and everything that the troll posts. > I would second this emotion however there are those on this group that > evidently LIKE having him around even though he causes nothing but > controversy and confusion. There is no confusion except that caused by the ignorant. There are TWO individuals on this group who generally know what we're talking about: Richard K and I. Any 'confusion' or 'controversy' is caused by those who don't know what they are talking about. Acufine is a phenidone-based fine-grain solvent devloper, similar to Microphen and D-76, except the latter is based on Metol. Like those developers, Acufine has a low ph in stock strength. Diluting it more than just a little gives too low concetrations of developing agents, and slow action. Going beyond 1+1 is probably not a very good idea, except perhaps with very slow films. For highly-dilute use, Acu-1 is a more appropriate product. Diluted to a small degeree, sure, but not 1+10 or 1+20! What did you think I was talking about? In any event, fine-grain solvent developers such as Acufine and D-76 work best undiluted or at most 1+1. > > Acufine is not intended for dilution, Acu-1 is. > > [quoted text clipped - 16 lines] > assessed by your peers? I have seen your work and have had an opportunity > to form my opinion. Steve do you have a chart of dilution's and such for Acufine as a one shot developer? I recall reading something about it years ago but back when I could buy both I just used Acu-1 since it was made and marketed for the one-shot crowd. Signaturedarkroommike > > Acufine is not intended for dilution, Acu-1 is. > > [quoted text clipped - 16 lines] > assessed by your peers? I have seen your work and have had an opportunity > to form my opinion. Acufine was not really intended originally for one shot use, that's where Acu-1 came from. Signaturedarkroommike > Right, but I'm looking for Acufine, not ACU-1. > Thanks. [quoted text clipped - 10 lines] > >> dilutions? > >> -Lew > Acufine was not really intended originally for one shot use, that's where > Acu-1 came from. BINGO! > -- > darkroommike [quoted text clipped - 18 lines] > > >> dilutions? > > >> -Lew |
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