Grain clumping?

[bill h]

Never seen anything like this. Arista 100 (shot at 50) developed in split 23, fairly fresh (about a month old, well within capacity) normal except somewhat shorter time due to temperature (about 72). Water stop. Fixed in TF4.
The B side, developed in straight Xtol, was completely normal.

Dumped the developer, which appeared normal too, greenish after the Arista.
Shoulda used caffinol.

bill h

 

[albada]

In the upper part of the pic, the filth has been rubbed off. How did you do that?

And what's a B-side?

Mark Overton

 

[lxdude]

Don't do spray-painting in the darkroom.

 

[Aron]

I've seen something like this on 35 mm film that allegedly got dropped in a pond, found and developed only much later.

(Grain clumping is a controversial issue.)

 

[inlarry]

When I worked in a lab I've seen this happen either with VERY old film someone tried to process, or if someone had dropped their film in a pool/tub/whatever wet resulting in the film sticking to itself. Any possibility it got loaded bad? Or do you cold store your film and/or live in a humid area?

 

[jordanstarr]

It doesn't look like "grain clumping" to me. Looks like you got some junk on your film and you cleaned some of it away with your finger, hence the fingerprint.

 

[pgomena]

I once washed some film right after utility workers did maintenance on the water mains on my street. All kinds of grit was on/embedded in the emulsion after I washed the film. I bought a filtration system not long after. Your film looks like you have a water/dirt/scum problem of some kind.

Peter Gomena

 

[Photo Engineer]

Not clumping. No such thing.

If it is not dirt or another processing problem, it came from the actual manufacturing process, which I doubt.

You did this somehow during the process - that is my opinion.

PE

 

[cliveh]

Never seen anything like this. Arista 100 (shot at 50) developed in split 23, fairly fresh (about a month old, well within capacity) normal except somewhat shorter time due to temperature (about 72). Water stop. Fixed in TF4.
The B side, developed in straight Xtol, was completely normal.

Dumped the developer, which appeared normal too, greenish after the Arista.
Shoulda used caffinol.

bill h

What on earth are you talking about?

 

[bill h]

Oh it is definitely something that I or my chemistry caused. There is no dirt on the negative, the pattern is in the emulsion. The apparent wipe marks -- well I am probably not the cleanest worker ever, I don't believe I could have done that sort of handling. There were four holders all from the same batch of Arista, and the resulting negatives were processed 4 and 4; first four in Xtol, they were normal; second four, one from each holder, processed in Thornton formula D23, two part, A and B. There are no marks on either side of the film that would suggest fingerprints, though the clear area does show what appears to be a fingerprint. Not guilty.
My reason for posting is curiosity, I've never seen anything like this; not worth much effort. More testing tonight with fresh developer.

Thanks for your ideas. Bill h