whlogan
Member
I, too, would really like some deeper scientific data and proof here as a dedicated /diafine user. If you got it, then I with you !
Logan
Logan
if you need more grainly images - try to use Sodium Carbonate 10g/l instead Borax in bath B. this also increased contrast too.Nice results Relayer! Hard to tell from this small pictures, but Diafine C grain looks "mushy" - not well defined or sharp?
1 year old bath A of Diafine-C working ok and have same pH as fresh solution!Any comments on the storage, shelf life and the capacity compare with Diafine?
in solution with Na2SO3 hydroquinone oxidize to hydroquinone monosulfonate:It seems to be the accepted wisdom that in part full bottles hydroquinone based developer (Diafine) will oxidize more slowly than ascorbate (-C version).
I was made some experiment with Diafine formula and replace 6g of Hydroquinone in bath A to 10g of Sodium Ascorbate. so my formula of Diafine-C....
usage 3min in each bath. results is very good - really less grain
HP5+ @400, scan 2400dpi, left Diafine-C, right - Diafine
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Significantly less grain, but also noticeably less sharpness. There are tradeoffs, but some fine tuning might improve things.
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