Fuji Acros 120

[Willie Jan]

Fuji across is a bad film for underexposure. It's critical at that point.
I use/rate it at 50 asa in combination with rodinal or pyrocat hd,

So 400 would be an overexposure of 3 stops.
That would mean that your zone III (middle gray) is placed in VI.
Be aware that your original scene zone II,IV and V will not contain detal when developed with rodinal or pyrocat-hd.

overdeveloping your film will not get detail in these shadow regions.

The only thing you could do is choose a developer that is capable of using the fuji across at a iso value > 100. The higher the better for your case.

[Keith Tapscott.]

Hello,
I shot the film at 400asa instead of 100asa. Any thoughts on what to do when developing this film. I would really love to save this roll.
Thanks
Arthur

Underexposed film will always be that. You could try undiluted Ilford Microphen and develop for around 8-9 minutes.

[Thomas Bertilsson]

I hope you meant that EI 400 would be an under-exposure of 3 stops... Just to make it clear.

Fuji across is a bad film for underexposure. It's critical at that point.
I use/rate it at 50 asa in combination with rodinal or pyrocat hd,

So 400 would be an overexposure of 3 stops.
That would mean that your zone III (middle gray) is placed in VI.
Be aware that your original scene zone II,IV and V will not contain detal when developed with rodinal or pyrocat-hd.

overdeveloping your film will not get detail in these shadow regions.

The only thing you could do is choose a developer that is capable of using the fuji across at a iso value > 100. The higher the better for your case.