What developer for enlarged negatives?

[athanasius80]

Ok, I just bought APHS ortho film for making interpositives and enlarged negatives and have Rodinal, HC110, W2D2+, and Nacco Printol developer. What recommendations do you guys have for developers and dilutions? Thanks a lot!

 

[Ryuji]

I don't have experience with APHS, but I do with APH. I recommend D-19 developer or D-72/Dektol diluted 1+3. DK-50 may also be usable.

These films have rather high contrast, and if you make interpositive and internegative with these developers, the resulting neg will probably have quite high contrast. That might work well for low contrast printing-out processes. If the contrast is excessive, I suggest to use lower contrast developer for the interpositive stage and still use diluted Dektol for the final neg to ensure good density range of the negative.

 

[Donald Miller]

Ok, I just bought APHS ortho film for making interpositives and enlarged negatives and have Rodinal, HC110, W2D2+, and Nacco Printol developer. What recommendations do you guys have for developers and dilutions? Thanks a lot!

I have found that Dektol will work with APHS for the use that you want to use the material for. I dilute 1-10 for enlarged negatives and also use Dektol 1-30 for unsharp masks with the same film.

 

[Shinnya]

Hi,

Give this a try if you do not mind mixing from raw checmicals. It wroks nicely.

http://members.aol.com/fotodave/Articles/LC-1.html

Or this is another option, and this is the way I am doing...

http://unblinkingeye.com/Articles/EnlargeNeg/enlargeneg.html

Happy printing,
tsuyoshi

 

[Jim Noel]

IN order to not have drastic increase in contrast when making dupe negaitves it is necessary that the inter-positive be very low in contrast - that is it should contain detail in both highlights and shadows.
The developers which do this best for me with APHD are: HC 110 1+10- 1+20 from stock; D-76 1+5: and W2D2.
Then for the new negative moer contrast is desitrable. FOr this stepI use: W2D2; HC 110 dil. b; or D-76 1+1.

Hope this helps.
Jim

 

[donbga]

IN order to not have drastic increase in contrast when making dupe negaitves it is necessary that the inter-positive be very low in contrast - that is it should contain detail in both highlights and shadows.
The developers which do this best for me with APHD are: HC 110 1+10- 1+20 from stock; D-76 1+5: and W2D2.
Then for the new negative moer contrast is desitrable. FOr this stepI use: W2D2; HC 110 dil. b; or D-76 1+1.

Hope this helps.
Jim

I've had great results using HC110 dil. B for the interpositive and W2D2 for the enlarged negative with APHS.

Jim's advice about the inter-positive having low contrast is absolutely correct.

Don Bryant

 

[nworth]

APHS is a very high contrast film designed for photolithography. Many people have found it very useful for duplicate negatives and althernative process work if they process it in a way that tames the contrast. High dilutions of HC-110 or W2D2 will probably work, but you will need to experiment to determine times.

 

[lowellh]

Freestyle APHS Film responds very well to our Extend plus Developer. as a low contrast developer, it brings out the midtone details often missing with higher contrast developers.

 

[Aggie]

another factor in getting a flat interpositive with any developer is the amount of agitation, combined with dilution level, and time in developer. All variables that need to be understood.

 

[Jersey Vic]

Clayton Extend Plus Developer?

Freestyle APHS Film responds very well to our Extend plus Developer. as a low contrast developer, it brings out the midtone details often missing with higher contrast developers.

What's a good starting dilution for this Lowell-the 'standard' 1:15 or lower?

Thanks
Victor

 

[k_jupiter]

APHS EI 3 developed in 510-Pyro 1:500/70F/20min with agitation for the first minute, followed by one inversion/5min produces excellent negatives, with a full range of tones. A similar approach should work well for making internegatives/positives.

Jay

That's very iteresting. I hadn't thought of doing that with the several thousand feet of 46mm kodalith I have sitting around. I do have some HD- pyro and W2D2+ sitting around. Perhaps this is a weekend for doing some 'weird stuff' with the 127 camera. Or even pinholing it?

tim in san jose

 

[Lukas Werth]

Two notes:

1) I used pyrocat HD for the interposiive as well as for the final enlarged neg. I found some x-ray film which is still available, for a very reasonable price, with the emulsion coated only on one side (normal x-ray films are coated on two sides) which works very well for the interpositive (using normal films means total darkness, and normally the necessity of a shadow mask done also from APHS. The x-ray film demanded the addition of some vitamin c in the developer, which I also added for the development of the final neg).
Development of the enlarged neg was normally for 45-55 min (!) in 1+500. A Jobo would be handy here, which I don't have, but I I covered the dish and meved in and out to rock every 3 min, after the first 10 min continuous rocking.
The problem: the developed neg will probably have some layer from the alkali on it which has to be removed by whiping it of with cotton dipped in citric acid.

2) However, all in all I would rather recommend Liam Lawless' reversal method, as it saves the interpositiv. The problem here: if the original neg is too contrasty, the highlights will lack contrast. Two solutions: a) two enlarged negs, one for the shadows and midtones, one for the highlights, taped together in registration. b) develop with half the recommended concentration for a longer time, initially 12 minutes, be careful the developer gets fast exhausted this way.