Need Help Spiral JOBO Tank 2500

koraks said:

I hate to say it, but I still see what suspiciously looks like light fog.

Click to expand...

Tomorrow or after tomorrow I probably show you a clean one! I still get several rolls.

Actually, tonight I loaded it on a reel which is a little bit wet.
I don't know if you have any experience when you scratch the surface with your finger when load the film on the reel before development.

The result is the same. The trace turns to be dark on negative.
I realise that if I rotate the tank very violently, it's the same effect and much more because the wave is the physic scratch and the chemistry leaves the double effect.
Even water is soft, it's still there. So it's the same thing as you scratch the surface of the film with your finger.

Because of water, it looks like fog.

I sure hope for you that you're right. But honestly, I don't think so. Agitation does not cause fog.

Agitation, more precisely local streams, can only have effect on already exposed emulsion.

Shadow reduced again!

Rodinal 1+100 120 mins, first minute continue agitation

Have a nice weekend everybody!

almost perfect. Only a little shadow at the head of the film.

Delta 400 @400 Rodinal 1+100 36 mins
first minute continue agitation and 10 seconds every 5 minutes

yannjiang said:

I don't know if you have any experience when you scratch the surface with your finger when load the film on the reel before development.

The result is the same. The trace turns to be dark on negative.
I realise that if I rotate the tank very violently, it's the same effect and much more because the wave is the physic scratch and the chemistry leaves the double effect.
Even water is soft, it's still there. So it's the same thing as you scratch the surface of the film with your finger.

Because of water, it looks like fog.

Click to expand...

You are saying that violent rotation, as scratches, due to the water will make friktion marks, which then show as density.

No way.


Actually I meanwhile lost understanding what you are doing.
The majority here regards your artefacts as caused by a light leak. You hower are going on processing, showing that things get better.

Maybe it is violent agitation, with two litres of fluid, that is causing a light leak in the tank.