120 Acros 100 /developer combination ?

[gphoto120]

What developer would you experience folks suggest for Acros 100 120 format.

I'm just getting started in the darkroom and thinking about using Acros and also testing FP4 soon.

Thanks!
GP

 

[mcgrattan]

I use ADOX ADX (aka Adox A+B)for Neopan Acros and I really really like the combination.

However, it've also had OK results with Ilford DD-X.

 

[Amund]

From my experience, you`ll get nice results with just about any developer with Acros. Just give it enough exposure.

 

[Peter Schrager]

Acros

With rodinal 1:100 for 18 minutes. I do about 20% less in rotary drum, Great negatives.
Peter

 

[Dave Swinnard]

I'm happy with Perceptol 1+3 for 14 min @ 24C. Agitation 30s initially then 5s every minute.

But, now that Perceptol (locally) has more than doubled in price (~CDN$8.50/litre), I'm experimenting with Pyrocat HD (1+1+100). The preliminary results look fine (contrast-wise). I will be doing a print comparison for grain/sharpness "soon".

 

[avandesande]

Another rodinal 1:100 user. I do semi-stand and get nice full shadows at 100.

 

[Travis Nunn]

Like Amund said, you'll get nice results with just about any developer.

I've used Sprint Standard 1:9 for 10 min and Rodinal 1:50 for 11 min, both at 20 Deg.

 

[Dan Henderson]

I use DiXactol single bath, minimal agitation, and get great results. I just recently switched to Acros from Delta 100 and have not experimented with developers other that HC110, so i can't comment on how it reacts to various developers, just that it works great with DiXactol.

 

[m_liddell]

In pyrocat 1:1:100 for 11mins @ 20C

 

[tbm]

I soup 35mm Acros 100 in Microdol-X at 75 degrees, mixed 1:3, for 18 minutes and get wonderful negs.

 

[gphoto120]

Wow! This really is a great forum! Thanks to everyone for your input and responding so quickly!

 

[Willie Jan]

across 120:

exposed at 50
developed 14 minutes in rodinal 1+100 (594cc water, 6cc rodinal)
at 20 degrees c. Flip the tank each 30sec. gently.

Willie Jan
www.foto-art.nl

 

[thefizz]

I soup my 120 Across in Rodinal 1:50 and Tmax 1:9.

 

[Maine-iac]

What developer would you experience folks suggest for Acros 100 120 format.

I'm just getting started in the darkroom and thinking about using Acros and also testing FP4 soon.

Thanks!
GP

If you'd enjoy mixing your own developer from scratch, I use a simple, 3-ingredient formula for ACROS that gives me beautiful results and is simple to mix and dirt cheap.

Two of the three ingredients, you can buy at your supermarket or vitamin department. The Phenidone is the only ingredient you'll need to buy from Photographer's Formulary online.

Since Phenidone doesn't always dissolve easily in water, I use 90% isopropyl (rubbing) alcohol from the market or pharmacy to make up a 1% stock solution. 1g. phenidone in 100 ml of alcohol. This stock keeps very well for many months.

Formula for PCC (Phenidone, Vitamin C, Sodium Carbonate)

1 liter water at 70F
1/2 kitchen teaspoon (4 g.) of Vitamin C (ascorbic acid) powder or crystals
1 tsp. (5 g) Sodium Carbonate (Arm & Hammer Washing Soda from the supermarket or pH Plus from the swimming pool supply store.)
2.5 ml Phenidone stock solution (the baby medicine droppers work well for this)

My developing time for Acros (rated at ISO 50) is 7'30" at 70F. Your times may vary a bit.

It gives very, very fine grain and a wonderfully long tonal scale with creamy highlights. I mix it fresh and use it as a one-shot for each developing session. I can run as many as four rolls through one liter. If you have a tank that will hold only 2 120 rolls, you can do two runs, increasing the developing time in the second run by about 15-20%.

Larry

 

[Wmcgowin]

I'm pretty standard, but I use D-76, take the suggested developing times on the inside of the Acros box and increase them by 15-20%. I was getting low contrast negatives until I increased the development times.

 

[Bruce Osgood]

With rodinal 1:100 for 18 minutes. I do about 20% less in rotary drum, Great negatives.
Peter

Peter, is that at box speed or something else? Does this apply to 35mm as well?

 

[dancqu]

[QUOTES=Maine-iac]
... a simple, 3-ingredient formula for ACROS that gives
me beautiful results and is simple to mix and dirt cheap.

Formula for PCC (Phenidone, Vitamin C, Sodium Carbonate)
... 2.5 ml Phenidone stock solution

It gives very, very fine grain and a wonderfully long tonal
scale with creamy highlights. I mix it fresh and use it as a
one-shot for each developing session. I can run as many
as four rolls through one liter. Larry[/QUOTE]

That little phenidone for four rolls? By my math, for the
liter, that is a .0025 % solution of phenidone. The amount
being .025 grams. That works out to .00625 grams/roll.
Are you sure so little will do?

On another tack. That less than 0.01 gram of phenidone
in hundreds of milliliters of water will in a few minutes fully
engulf and reduce all the necessary silver halid grains
needed to make an image.

And to think I've been saying I use fixer very dilute. Dan

 

[John Simmons]

Perceptol 1+2 for 16 Min @ 68 degrees.

 

[mawz]

Just did a roll in TMAx Dev 1:4 for 5.5 minutes at 20C. Turned out quite well.

 

[André E.C.]

I`ve tried ACROS 120 in DDX 1:4 for 9 minutes at 20c, I`m pleased with what I got.

Cheers

André

 

[Peter Schrager]

Speed

Bruce-yes I get box speed from this combo. It's 120 so yoour going to have to try the 35mm. Hey I just bought some of the High Resolution film at the conference...move over Acros....
Best, Peter

 

[Maine-iac]

That little phenidone for four rolls? By my math, for the
liter, that is a .0025 % solution of phenidone. The amount
being .025 grams. That works out to .00625 grams/roll.
Are you sure so little will do?

On another tack. That less than 0.01 gram of phenidone
in hundreds of milliliters of water will in a few minutes fully
engulf and reduce all the necessary silver halid grains
needed to make an image.

And to think I've been saying I use fixer very dilute. Dan

Yep. Works just fine. Actually, that's probably more Phenidone than I need. I got the basic ratios of that formula from some old Photo Techniques article that Pat Gainer wrote, but I believe (though I may be mistaken) that he subsequently determined that the optimum ratio of Phenidone to ascorbic acid was 1:40. But I've never bothered to change since I love the results I get now.

Larry

 

[dancqu]

Yep. Works just fine. Actually, that's probably more
Phenidone than I need. ... Pat Gainer ... determined
that the optimum ratio of Phenidone to ascorbic acid
was 1:40. But I've never bothered to change since
I love the results I get now. Larry

Phenidone is certainly some Fantastic developing agent.
Almost none is required. One formula I encountered for a
one liter concentrate uses 1 gram of phenidone. That liter
is to make 50 liters working strength; .02 grams per liter.
No mention though of a liter's working strength capacity.

IIRC, Mr. Gainer's interest was with the regenerative
aspect of the ascorbic acid-phenidone pair. Ratios
above 1:40 did little to further increase activity.
That is not though the only basis for deciding
upon a specific ratio. Dan

 

[Maine-iac]

One liter of my formula might even develop more than four rolls of film; I've just never tried it. Since I have a two-reel (120) tank, if I've got four rolls to run at one time, I develop the first two rolls at my usual time (6:30 for Delta 400), then load the other two rolls and run them through, increasing the time about a minute. I can't tell any visual difference between the two runs. I'm fairly certain that if I did a third run and increased the time a bit more, the capacity would be there to develop them just fine too. The Phenidone/Ascorbic acid combo is potent. And it's so simple, cheap and convenient as well--three ingredients counting the alkali, and by switching between metaborate and carbonate for different films, it's also very versatile.

 

[Steve Smith]

Processed two rolls of 120 Acros 100 this weekend in Ilford LC29. The data I found for this combination was 4-1/2 minutes at 1:19. As this was for ISO80 and I had exposed for ISO100, I developed for 5 minutes - negatives looked great (as do prints!).

Steve Smith.