Messed up exposure, advice needed

[DezFoto]

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Hi all, I messed up and exposed half a roll of Tri-x 400 at 50, then 400. I don't develop myself but is there any instructions I can give the lab where both exposures could be saved, or do I need to pick one?

[Michael Geschlecht]

Hello DezFoto,

 

It might be OK with normal development.

 

When you hold the film cartridge with the little "nubbin" to the left & read the film cartridge little squares LEFT TO RIGHT: 

 

What do they read?

 

For example: White, black, black, white, white, black on the top row?

 

Or something like that.

 

1 thru 6 on the top & then 7 thru 12 below.

 

Best Regards,

 

Michael

Edited January 27, 2017 by Michael Geschlecht

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[mikemgb]

Basically you have overexposed one half of the film by three stops, black and white film generally has enough latitude to cover that. The negs will be very dense but still usable. If I was home processing this film though I would probably pull the film by one stop. That way neither half will be perfect, but both will still be pretty good.

[250swb]

I think you'll find everything is OK, not perfect but OK. Have it processed as if a normal roll, the latitude of the film should (hopefully) give usable negs for both under and over exposed shots.

[DezFoto]

Thanks everyone, I appreciate the help! It'll serve as a reminder to check my ISO setting on my M6 when I load the camera. I guess in hindsight I should have just left it at 50 and over exposed the whole roll and then had it pulled 3 stops in development.