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Tiny spots on negs
There are tiny back spots all over my negs (white in the print) but
really tiny, only obvious at almost 6 to 8x enlargment. Here is a section from a 400dpi scan of 35mm neg: http://www.sukitesurfing.co.uk/spotting.jpg I'm using distilled water for all solutions and final rise. Problem was much less when I switched to perceptol (1:3) from ilfosol (1:19) but all the rolls done it perceptol have been done at home rather than my uni darkroom. Have tried with an without photoflo too. I live in a very hard water area so could it be that? Despite distilled water for all solutions and final rise? Agitation as as per ilford and I tap the tank on the counter a few times each minute. Any help would be massivly appreciated, I hate spending ages in photoshop editing them all out when I could print with an enlarger. |
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"Mark Liddell" wrote in message om... There are tiny back spots all over my negs (white in the print) but really tiny, only obvious at almost 6 to 8x enlargment. Here is a section from a 400dpi scan of 35mm neg: http://www.sukitesurfing.co.uk/spotting.jpg Why can't it be simple dust? I'd be darned happy if my dust situation were that minor. |
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"Mark Liddell" wrote in message om... There are tiny back spots all over my negs (white in the print) but really tiny, only obvious at almost 6 to 8x enlargment. Here is a section from a 400dpi scan of 35mm neg: http://www.sukitesurfing.co.uk/spotting.jpg Why can't it be simple dust? I'd be darned happy if my dust situation were that minor. |
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"Mark Liddell" wrote in message om... There are tiny back spots all over my negs (white in the print) but really tiny, only obvious at almost 6 to 8x enlargment. Here is a section from a 400dpi scan of 35mm neg: http://www.sukitesurfing.co.uk/spotting.jpg Why can't it be simple dust? I'd be darned happy if my dust situation were that minor. |
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I'm using agfa agefix (non-hardening ammonium based). I'll try using
distilled water in the first rinse after the fix, and then distilled throughout. Distilled water is a pain to get hold of and expensive in these quantities. Thanks for the help, -- Mark (Dan Quinn) wrote in message . com... (Mark Liddell) wrote There are tiny back spots all over my negs I'm using distilled water for all solutions and final rise. Very hard water you say. I also. I use distilled through out the entire processing of film and paper. You did'nt mention fixer. It is not so well knowen that there are insoluble compounds of the siver thiosulfate complex. I believe that to be the case. Bill Troop of 'The Darkroom Cookbook' fame, hinted at it when he pointed out that potassium should not be an element in processing although he over stated it's harmfull effect. Likely hypo meeting up with your hard, element containg rinse and wash waters is not the cause of spots though it may be. Apart from that, be sure the first rinse after fix is distilled water. Spots or no spots, it is likely you are leaving in emulsions small amounts of the insoluble forms of the silver thiosulfate complex. Dan |
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I'm using agfa agefix (non-hardening ammonium based). I'll try using
distilled water in the first rinse after the fix, and then distilled throughout. Distilled water is a pain to get hold of and expensive in these quantities. Thanks for the help, -- Mark (Dan Quinn) wrote in message . com... (Mark Liddell) wrote There are tiny back spots all over my negs I'm using distilled water for all solutions and final rise. Very hard water you say. I also. I use distilled through out the entire processing of film and paper. You did'nt mention fixer. It is not so well knowen that there are insoluble compounds of the siver thiosulfate complex. I believe that to be the case. Bill Troop of 'The Darkroom Cookbook' fame, hinted at it when he pointed out that potassium should not be an element in processing although he over stated it's harmfull effect. Likely hypo meeting up with your hard, element containg rinse and wash waters is not the cause of spots though it may be. Apart from that, be sure the first rinse after fix is distilled water. Spots or no spots, it is likely you are leaving in emulsions small amounts of the insoluble forms of the silver thiosulfate complex. Dan |
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