Pushing acros 2 stops in 35mm

[msbarnes]

I made a mistake yesterday. I exposed acros at ISO 400. Any recommendations for a 2 stop push?

I have D76 and Rodinal but I might be willing to add another developer.

 

[Calzone]

I made a mistake yesterday. I exposed acros at ISO 400. Any recommendations for a 2 stop push?

I have D76 and Rodinal but I might be willing to add another developer.

Acufine rates Acros at 400 ISO.

Cal

 

[znapper]

HC-110 dilution H for around 18 minutes 20 degrees should be good.
1 min initial slow inv. Then 1-2 inv every 2 minutes.

 

[Roger Hicks]

It's one of the worst 'ISO 100' films in the world to push: well below ISO 100 in most developers ('well below' being a mere 1/3 stop, even so), with a short toe and (in my experience, and I am not alone) a small developer repertoire. Accept advice ONLY from those who have tried a particular combination of developer and Acros 100 when pushed, and shun anyone who recommends a particular developer/development regime purely in theoretical grounds; or from spec sheets; or because it's his favourite developer even though he hasn't tested it on that particular film for pushing.

Cheers,

R.

 

[znapper]

Acros push very well IMO, Roger.

Off course you'll end up with higher contrast and less shadow detail, but still, "the worst" is a bit harsh IMO. I've pushed acros with nice results.

Here's a Flickr thread with examples: http://www.flickr.com/groups/32685380@N00/discuss/72157607040901254/

 

[ktran]

I also respectfully have to disagree with Roger. Acros is one of the easier films for me to push

ISO 400:


twirl by khoa_sus2, on Flickr


parade steel drummers by khoa_sus2, on Flickr

Going +2 stops with Acros gives me far, far fewer headaches than going +2 stops with something like Tri-X.

 

[yossarian123]

Acros + 1 in HC110 is one of my go to combos. Shadow detail goes bye bye but it has a distinctive look that I love.


the elusive mountain lion by SL_Photos, on Flickr

 

[Roger Hicks]

Well, I did say 'one of' (not 'the worst', though actually, in my experience it is) and I did say 'accept advice ONLY from those who have tried a particular combination of developer and Acros 100 when pushed' which ktran has done and appears to have done very well. It's just that I'd be much happier with advice from someone like ktran, who has successfully tried a specific combination, than from someone who hadn't.

Cheers,

R.

 

[ZorkiKat]

Hi, allow me to chime in. 🙂

My observations with pushing Acros 100 (and other 100 films) agree with Roger's points. I don't see these films as the best candidates for pushing. Contrast, highlight and shadow details, and true advantageous gains from underexposure/overdevelopment are my criteria for saying that Acros is not good for pushing and modified development.

The examples given here look fine and good. But they also appear to be shot in good light, and outdoors under even lighting conditions where there are other factors which can make the 'push' results look good.

I have tried pushing Acros in bad light- where the dim situations called for a higher emulsion speed. The contrast was high, the highlights were bullet proof, and there was almost no shadow detail.

I would never push Acros or 100 speed films, unless it was an emergency (no other film on hand, or in cases of mismatched ISO dials on meters or cameras).

 

[znapper]

And on that note, msbarnes, you'll just have to throw your film in the bin.

🙂

I agree with the above, that you shouldn't shoot acros as a 400 film (200 is usually just fine though, again, IMO ).

But when he is already gone and done it, what we are (at least I am) trying to do, is to provide formulas and times that worked with us, then at least, he will get something , just saying it isn't any good, doesn't help much. ^^

 

[Photo_Smith]

Acros pushes OK, I'd say a speed increasing developer like DDX or similar would be best.
I have pushed it to EI 800 through necessity rather than desire and processed it in Rodinal for 18 mins.

Not going to be king of shadow detail, but you might find it acceptable especially if scanning, remember if you want to do this again to meter for emerging detail and stop down 2 stops–you should stand a better chance...
Hope that helps.
Mark Antony

 

[lam]

I've pushed 100 to 400 comfortably, I miss Neopan.


Canned Goods. by lamlux.net, on Flickr


Pull the door inward. by lamlux.net, on Flickr

I used Rodinal, 1+50 for probably 16 minutes.

 

[Roger Hicks]

And on that note, msbarnes, you'll just have to throw your film in the bin.

🙂

I agree with the above, that you shouldn't shoot acros as a 400 film (200 is usually just fine though, again, IMO ).

But when he is already gone and done it, what we are (at least I am) trying to do, is to provide formulas and times that worked with us, then at least, he will get something , just saying it isn't any good, doesn't help much. ^^

That's all I was saying too. Trust someone who's tried it. Unless they say they've tried it, and (ideally) show results, ask why they're recommending it, in order to make sure they are advising from experience and not theory. You have to admit that the latter is not unknown on RFF.

Cheers,

R.