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Expose to develop delay time

Illford's data sheets say that up to 24 hours causes no noticeable change in the final image.

I have shot paper pinhole negatives and developed them weeks later with no problems. I'm not saying they didn't shift, but FYI.
 
Only if you say 'please'.

Of course I will. The book will be ready for the printer in three months.

Just in time for Christmas.

Hopefully less of a sticker shock than the $999 (plus shipping) I see over at Amazon. I know that's just couch money for most of you folks, but my lottery numbers just aren't coming up.

Cheers,
 
Illford's data sheets say that up to 24 hours causes no noticeable change in the final image.

I have shot paper pinhole negatives and developed them weeks later with no problems. I'm not saying they didn't shift, but FYI.

It is noticeable allright, but you will only see it in a side-by-side comparison. For paper negatives the effect may actually help by increasing he shadow detail.