After more than half a century in the darkroom, I think that I have just discovered the wheel.
I am placing this into the B&W section because I feel that ALL people will read this, as opposed to only SOME people reading color processing. This information applies to both venues.
I have decided that, from now on, for both color and B&W printing, I will use only ONE tray. Why? Read on.
For utter consistency, and ease, I use one tray and do not EVER reuse chemistry. How do I do this? First, I have a tray which conforms (approximately) to the paper size. Say I wish to do 5 x 7. I use that type of tray, but one with a flat or almost flat bottom (Cesco-Lite). For 5 x 7, I need only 50mL of each solution (except developer), which I prepare in pudding/applesauce cups (they are less likely to tip over in the dark: I have never used a safelight since I started darkroom in 1964). I line up the stop and fix cups. I also set up, with convenient dark-access, a large plastic storage bin (Walmart) so I can dump the solutions as I proceed. Then I put in 50mL of developer into the tray (no cup needed). I expose in the enlarger, then, face DOWN, I place the print into the tray and rock it gently, but steadily, so it is almost always covered for my standardized two minute development time.
My standardized development time for prints (color or B&W) is two minutes. This assumes an ambient of 80F (26.67 C), as I do not like chilly rooms, (so if you like colder, you might dilute less than I do or give a bit more development time.) After the two-minute development, in full darkness, I gently lift the tray and, over the dump, turn the tray about 90 degrees so all the fluid is released into the dump. I rarely have to hold the print but you might wish to place your index finger onto the edge of the print so it will never exit the tray. Then I place the tray on the table again and pour in the stop. Agitate for about 15 seconds, then dump, then fix for about one minute, then dump that. This covers my B&W procedure. My color process is a bit extended. Read on.
For color prints I do as I said for B&W, using, in both instances, a paper-strength fixer. For B&W prints I use Dektol 1+4, a bit more diluted than Kodak says you have to use it. For color, I use Kodak RA4 RT (roller transport) developer. I mix the way Kodak says to mix it, but do not use it at that strength. (I have defied the Heavenly Yellow Father so many times you would have thought that I would have been excommunicated by now.) My sacrilege follows:
I treat the RA4 developer, as mixed per Kodak, as ‘stock’, and keep it in air-tight PET plastic bottles. For working solution, I mix this ‘stock’ an astounding 1 + 9. That dilution ALSO keeps well in PET plastic, so I can have a prepared reserve supply. Again, I put 50 milliliters of that ‘working solution’ developer into the 5 x 7 tray, and then prepare the stop and fix as before, in cups. It is the same as for B&W up to that point. Then, after fixation, I turn the lights back on, empty the fix into the dump, then (VERY IMPORTANT FOR COLOR) rinse TWICE with 50ml of water (each time) in the tray. Doing that seems to relieve me of any anticipation of staining problems, as, believe it or not, color developer molecules cling to that paper despite the stop and fix steps. After that wash I am ready to blix. 25ml of BLEACH + 25ml of paper strength fixer (NOT the SAME fixer that you used before, as that is ‘contaminated’). This 50ml of blix can be done in full roomlight and serves to slightly lighten and give a warmish hue (slight yellow) to the print. My BLEACH is made as follows: 1 mL of Potassium Ferricyanide makes 200ml of Bleach (for paper). (NOTE: for color negative FILM, mix at twice the strength; i.e., 1 mL PF would make 100 ml film bleach). To make the blix: mix one part bleach to one part paper strength fixer. (AGAIN NOTE: for the film: use the stronger bleach and mix one part to one part FILM STRENGTH fixer.)
So, again, you have 50ml of blix for the paper (25 + 25) and this does not keep well for more than maybe 15 minutes, but, so what, you quickly blix the print in full room light and for about one to two minutes. Then dump the blix and, this time, rinse with THREE 50ml rinses of water to get all that nasty blix out of that tray so you can begin developing the NEXT print in an uncontaminated tray. Obviously, having a few liters of pure water nearby allows this to be done easily.
After doing this for several weeks I report absolutely NO STAIN or FAULTY COVERAGE in processing. It is a new lease on life for me, as there is NEVER a time when that print must be removed from the tray, and dripped completely, until after that final wash. Of course, after removed from the tray you COULD wash again, later, but this one-tray ease has been a godsend to me: (even though the Yellow Father might excommunicate me).
NOTA BENE: Color Negative (C41 Kodak Flexicolor): Mix as per Kodak and consider that as STOCK: Then, for working solution, mix 1 + 7 for use. I use either 100F (8 minutes) or, as in this case that you see, 90F (12 minutes). With the cooler temp you will have a slight difference with filtering in your enlarger (a bit more yellow needed) but either way gives great color, despite the anger and wrath of Yellow Father Kodak. – David Lyga
I am placing this into the B&W section because I feel that ALL people will read this, as opposed to only SOME people reading color processing. This information applies to both venues.

I have decided that, from now on, for both color and B&W printing, I will use only ONE tray. Why? Read on.
For utter consistency, and ease, I use one tray and do not EVER reuse chemistry. How do I do this? First, I have a tray which conforms (approximately) to the paper size. Say I wish to do 5 x 7. I use that type of tray, but one with a flat or almost flat bottom (Cesco-Lite). For 5 x 7, I need only 50mL of each solution (except developer), which I prepare in pudding/applesauce cups (they are less likely to tip over in the dark: I have never used a safelight since I started darkroom in 1964). I line up the stop and fix cups. I also set up, with convenient dark-access, a large plastic storage bin (Walmart) so I can dump the solutions as I proceed. Then I put in 50mL of developer into the tray (no cup needed). I expose in the enlarger, then, face DOWN, I place the print into the tray and rock it gently, but steadily, so it is almost always covered for my standardized two minute development time.
My standardized development time for prints (color or B&W) is two minutes. This assumes an ambient of 80F (26.67 C), as I do not like chilly rooms, (so if you like colder, you might dilute less than I do or give a bit more development time.) After the two-minute development, in full darkness, I gently lift the tray and, over the dump, turn the tray about 90 degrees so all the fluid is released into the dump. I rarely have to hold the print but you might wish to place your index finger onto the edge of the print so it will never exit the tray. Then I place the tray on the table again and pour in the stop. Agitate for about 15 seconds, then dump, then fix for about one minute, then dump that. This covers my B&W procedure. My color process is a bit extended. Read on.
For color prints I do as I said for B&W, using, in both instances, a paper-strength fixer. For B&W prints I use Dektol 1+4, a bit more diluted than Kodak says you have to use it. For color, I use Kodak RA4 RT (roller transport) developer. I mix the way Kodak says to mix it, but do not use it at that strength. (I have defied the Heavenly Yellow Father so many times you would have thought that I would have been excommunicated by now.) My sacrilege follows:
I treat the RA4 developer, as mixed per Kodak, as ‘stock’, and keep it in air-tight PET plastic bottles. For working solution, I mix this ‘stock’ an astounding 1 + 9. That dilution ALSO keeps well in PET plastic, so I can have a prepared reserve supply. Again, I put 50 milliliters of that ‘working solution’ developer into the 5 x 7 tray, and then prepare the stop and fix as before, in cups. It is the same as for B&W up to that point. Then, after fixation, I turn the lights back on, empty the fix into the dump, then (VERY IMPORTANT FOR COLOR) rinse TWICE with 50ml of water (each time) in the tray. Doing that seems to relieve me of any anticipation of staining problems, as, believe it or not, color developer molecules cling to that paper despite the stop and fix steps. After that wash I am ready to blix. 25ml of BLEACH + 25ml of paper strength fixer (NOT the SAME fixer that you used before, as that is ‘contaminated’). This 50ml of blix can be done in full roomlight and serves to slightly lighten and give a warmish hue (slight yellow) to the print. My BLEACH is made as follows: 1 mL of Potassium Ferricyanide makes 200ml of Bleach (for paper). (NOTE: for color negative FILM, mix at twice the strength; i.e., 1 mL PF would make 100 ml film bleach). To make the blix: mix one part bleach to one part paper strength fixer. (AGAIN NOTE: for the film: use the stronger bleach and mix one part to one part FILM STRENGTH fixer.)
So, again, you have 50ml of blix for the paper (25 + 25) and this does not keep well for more than maybe 15 minutes, but, so what, you quickly blix the print in full room light and for about one to two minutes. Then dump the blix and, this time, rinse with THREE 50ml rinses of water to get all that nasty blix out of that tray so you can begin developing the NEXT print in an uncontaminated tray. Obviously, having a few liters of pure water nearby allows this to be done easily.
After doing this for several weeks I report absolutely NO STAIN or FAULTY COVERAGE in processing. It is a new lease on life for me, as there is NEVER a time when that print must be removed from the tray, and dripped completely, until after that final wash. Of course, after removed from the tray you COULD wash again, later, but this one-tray ease has been a godsend to me: (even though the Yellow Father might excommunicate me).
NOTA BENE: Color Negative (C41 Kodak Flexicolor): Mix as per Kodak and consider that as STOCK: Then, for working solution, mix 1 + 7 for use. I use either 100F (8 minutes) or, as in this case that you see, 90F (12 minutes). With the cooler temp you will have a slight difference with filtering in your enlarger (a bit more yellow needed) but either way gives great color, despite the anger and wrath of Yellow Father Kodak. – David Lyga


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