[Leica] Film exposure error - how to correct it

[photo at frozenlight.eu (Nathan Wajsman)]

As someone else has suggested, you should probably decide based on the 
relative importance of the images. Also, assuming that you are going to scan 
the negatives, I think it is easier to deal with underexposed than 
overexposed images, which would imply developing for 125 and dealing with 
the underexposed images at the scanning stage.

Cheers,
Nathan

Nathan Wajsman
Alicante, Spain
http://www.frozenlight.eu <http://www.frozenlight.eu/>
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> On 16 Aug 2017, at 11:21, Peter Dzwig <pdzwig at summaventures.com> wrote:
> 
> All,
> 
> I put my M3 back in to use over the vacation. I was exposing the film in 
> it as
> ASA400 assuming that I had one of my usual films in it.
> 
> HOWEVER ( :-( ) I found that I had a roll of 125 ASA FP4+ in it when I 
> came to
> the end of the roll. When I started using it I had noticed that I had 
> already
> exposed some 10 frames. So I have 10 frames exposed at 125 ASA and 25 - or
> thereabouts - exposed as 400 ASA. Most of the shots taken when I was 
> assuming it
> was 400 were exposed in the region of f8 - f16 at 1/500th.
> 
> I send film to Ilford to process. My question is: how should I tell them to
> develop it?
> 
> I think I have the following options:
> 
> (i) DON'T - just bin it and write it off to bad luck!
> 
> (ii) Develop it as (say) 200 ASA, accept that some will be under-exposed 
> and
> that the rest will be over exposed and sort it out when I scan the film 
> and play
> with it in PS or NikFX (or whatever). The short exposure times on the 400 
> ASA
> shots may help as they will be on he darker side.
> 
> (iii) Develop it as one or the other (125 or 400 ASA)
> 
> Any other thoughts/recommendations?
> 
> Peter
> 
> PS I know that I should shoot a whole roll before i forget what the film 
> is and
> go off on autopilot :-)
> -- 
> 
> ===========================================================
> Dr Peter Dzwig                                
> 
> 
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