Hello all,
As the title suggests, I have recently discovered a thin residue on the non emulsion side of some recent negatives.
My processing has not changed but something has...
Unfortunately, it is impossible to show this in a photo otherwise I would submit one.
The layer of residue is not evenly spread over the negative, it is interspersed with quite uniform vertical lines of clear sections that look like no effect has taken place in those areas.
I first noticed these artefacts on a blank frame. On closer inspection it is obvious that this residue has coated itself along the length of the 120 strip by looking at the spaces between the frames.
My initial thought is that this is photo flo. I was able to clean off the residue relatively easily with a soft cloth from the blank frame. I am a little hesitant to try to do the same over an image unless there is a possibility (presuming this is photo flo) that the negatives could be damaged by possible bacterial growth in the future.
I did examine a strip of 120 developed about a month prior which is perfectly clean.
I understand that this is almost impossible to pin down remotely and without a reference photo of the said problem but any advice on how to proceed (to clean or not to clean) would be greatly appreciated. Or if anyone has had a similar experience from photo flo going bad for example. For the record I use a 1:300 dilution mixed with distilled water.
Thank you in advance
Mar
As the title suggests, I have recently discovered a thin residue on the non emulsion side of some recent negatives.
My processing has not changed but something has...
Unfortunately, it is impossible to show this in a photo otherwise I would submit one.
The layer of residue is not evenly spread over the negative, it is interspersed with quite uniform vertical lines of clear sections that look like no effect has taken place in those areas.
I first noticed these artefacts on a blank frame. On closer inspection it is obvious that this residue has coated itself along the length of the 120 strip by looking at the spaces between the frames.
My initial thought is that this is photo flo. I was able to clean off the residue relatively easily with a soft cloth from the blank frame. I am a little hesitant to try to do the same over an image unless there is a possibility (presuming this is photo flo) that the negatives could be damaged by possible bacterial growth in the future.
I did examine a strip of 120 developed about a month prior which is perfectly clean.
I understand that this is almost impossible to pin down remotely and without a reference photo of the said problem but any advice on how to proceed (to clean or not to clean) would be greatly appreciated. Or if anyone has had a similar experience from photo flo going bad for example. For the record I use a 1:300 dilution mixed with distilled water.
Thank you in advance
Mar