Pushing APX-100

[oscroft]

Pushing APX-100 might sound like a strange thing to do, but I did it accidentally - I exposed a roll at ISO 400 by mistake. I'm not sure how to develop it, but as it holds has some shots from Angkor Wat in Cambodia from November last year, I really want to do the best I can with it.

Looking at the Massive Dev Chart I see a suggestion of 29 mins in Rodinal 1:50, which is a possibility as I have some Rodinal.

But I also have some HC-110 and I'd like to get the grain as fine and smooth as I can, so I can't help feeling this might be better. My guess is that doubling the usual time for ISO 100 should be about right for the 2 extra stops, so maybe something like 15 min in dil B?

Any suggestions?

 

[hans voralberg]

29 min sounds awfully long, is that standing dev ?

 

[dfoo]

I developed some APX-100 that I had accidently exposed at 800 with diafine (I had exposed about 15 frames before I realized my mistake). Besides the odd streaking I got on some of the negatives, lots of it was quite printable. For 400 I don't think I'd use Rodinal, I'd be more inclined to use xtol 1+1.

 

[mr_phillip]

I'd be tempted to take 11 mins or so in HC-110 dil.b as a starting point (assuming 20°C and normal agitation). I'd also recommend you expose a couple of more rolls at the same rating and develop those first, giving you a chance to get your development time right before you risk your critical roll(s) from Angkor Wat.

 

[notturtle]

I would second Xtol, except use it at 1+3 with agitation every 2-3 minutes. As for the time, I would guesstimate +50-75%

 

[titrisol]

I would think this may work Hc110 B is 7 min for 100 and 20 for 800 so 14-15 should be fine.

However, go easy on the agitation so that you do not bloom the highlights.
And if you get printable stuff just be happy and take it on stride 😉

Pushing APX-100 might sound like a strange thing to do, but I did it accidentally - I exposed a roll at ISO 400 by mistake. I'm not sure how to develop it, but as it holds has some shots from Angkor Wat in Cambodia from November last year, I really want to do the best I can with it.

Looking at the Massive Dev Chart I see a suggestion of 29 mins in Rodinal 1:50, which is a possibility as I have some Rodinal.

But I also have some HC-110 and I'd like to get the grain as fine and smooth as I can, so I can't help feeling this might be better. My guess is that doubling the usual time for ISO 100 should be about right for the 2 extra stops, so maybe something like 15 min in dil B?

Any suggestions?

 

[oscroft]

Thanks folks.

I don't really want to go buying new developers for just one film (though I would if I really needed to), so I'll stick with the HC-110 and I'll follow the suggestion to shoot a couple of test films at ISO 400 to get the dev time right - I'll do that this weekend.

 

[titrisol]

SOOO?
what did it turn out?????

 

[oscroft]

SOOO?
what did it turn out?

Oh, don't know yet - I'll shoot a couple of test rolls this coming weekend, then I'll go for the real one.

I'll be sure to let you know 😀

 

[dfoo]

I tried pushing with HC110 once, and I didn't like the results...

 

[titrisol]

Couple of test rolls?
why?
you only neeed a few frames!

Oh, don't know yet - I'll shoot a couple of test rolls this coming weekend, then I'll go for the real one.

I'll be sure to let you know 😀

 

[oscroft]

Couple of test rolls?
why?
you only neeed a few frames!

I was really thinking to vary the lighting a little (I can't remember exactly what the lighting was like on the important roll), and spread my shots across two rolls so I can try two different dev times if necessary. And I really don't like wasting film, even if it is cheap and is experimental.

But I might just shoot half a dozen shots or so on one roll, dev that, and only shoot another if I don't get it good enough the first time.

 

[oscroft]

Well, I shot a test roll and gave it 15 mins in HC-110 dil B, and it looked good. So I went ahead with my Cambodia roll and it's hanging up to dry right now - the neg density looks really good.

Once it's dry I'll scan it and see what the results are really like - I'll post a few.

 

[zgeeRF]

I just saw this thread, so maybe it's late advice, but I have exposed many rolls of APX100 at 300 and developed in Diafine with great results, so 400 should be almost the same. (the first try was also a mistake but I liked it 🙂

 

[oscroft]

Hi Folks,

I've scanned the roll and I've put some samples in this Flickr set. I'm really pleased with the results - they're far better than merely "saved" 😀

And, zgeeRF, yes, I'd happily push APX-100 to ISO400 now, having seen how well it handles it.

Thanks again for all the thoughts,

 

[wjlapier]

Those look very good to me. Care to share your post processing? Always looking for a better way than mine :bang:

I have four rolls of TMax 100 I shot at 400. Developed my first roll using D76 at 13.5 minutes and so far so good. Not as grainy and contrasty as I read it would be.

 

[venchka]

Good. Bad. Ugly.

Good. Bad. Ugly.

Thanks folks.

ok, you ran a test.

How did you way work? We'll never know if the other ways might have worked better.

Your samples are typical of little jpegs on the web. I hope the prints are good.

 

[oscroft]

Hi folks,

It was developed the way I originally thought I'd try it - HC-110 dil B for 15 minutes.

No real post-processing at all. Just straight scans with my Epson V700, with no USM or anything applied at that stage.

Then resized and slightly sharpened (as you always need to when you resize something smaller) using GraphicConverter for Mac.

And yes, they're only small web images, so you can't really see fine grain structure (which looks pretty good), but you can see the nice tonal range that I got out of them.

On the whole, I'm pleased.