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  1. #11
    hpulley's Avatar
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    Are you pushing 100 ISO film to 160 ISO?

    Tetenal says a 1 stop push is 1.25x the time while a 2 stop push is 1.5x the time so a 2/3 push would be??? 1.13x? So 9:00 I guess for the dev, the blix actually you should go longer than 6:00, it is 6:30 at 39C so I'd do the maximum 8:00 blix for 30C.

    I just mixed my kit last weekend and I've done 5 120, 2 135-24 and 1 126-24 roll so far. I have 2 more 120 rolls to do tonight, maybe some more 135 if I can find some decent birds at lunch. So far so good, I think mine will be used up before any sort of time limit as the kit says 8 120 rolls or 12 135-24 or 16 126-24 so I think one more 120 roll will make it 100% of capacity though of course I will keep trying it after that to see what happens. The sheet says 25-50% more capacity is possible so I will see, I still have 3 120 and 3 135-24 rolls to shoot.
    Harry Pulley - Visit the BLIND PRINT EXCHANGE FORUM

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  2. #12
    hpulley's Avatar
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    By the way, other than ruining a roll is there any way to do a clip test with C41 film to check for color balance? I can check for d-max of course but it will be without color.
    Harry Pulley - Visit the BLIND PRINT EXCHANGE FORUM

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  3. #13
    hpulley's Avatar
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    Processed two more 120 rolls today, Kodak Portra 160NC 2005 expired this time. Both came out great! I'm now past capacity so I'm adding a little bit of time and making sure I have full temperature. The Blix bottle was a bit sunken so it must be oxidizing a bit -- the bottle was full but I lose a little with every roll I do so there is some air in the bottle. I should squeeze it out I know...
    Harry Pulley - Visit the BLIND PRINT EXCHANGE FORUM

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  4. #14
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    Harry, so you have just mixed the complete 1L kit and then poured out what you need for the developing tank, processed then back into same bottle? Any change in development time as you go along?

    Shane

  5. #15
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    I had my 5 litre kit for just over a year. But I only mixed up from the concentrate as I needed it.

    I've got some Kodak chemicals 'expired' in 2005 that are still fresh (again, stored in the concentrate).

  6. #16
    Athiril's Avatar
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    Quote Originally Posted by hpulley View Post
    Are you pushing 100 ISO film to 160 ISO?

    Tetenal says a 1 stop push is 1.25x the time while a 2 stop push is 1.5x the time so a 2/3 push would be??? 1.13x? So 9:00 I guess for the dev, the blix actually you should go longer than 6:00, it is 6:30 at 39C so I'd do the maximum 8:00 blix for 30C.

    I just mixed my kit last weekend and I've done 5 120, 2 135-24 and 1 126-24 roll so far. I have 2 more 120 rolls to do tonight, maybe some more 135 if I can find some decent birds at lunch. So far so good, I think mine will be used up before any sort of time limit as the kit says 8 120 rolls or 12 135-24 or 16 126-24 so I think one more 120 roll will make it 100% of capacity though of course I will keep trying it after that to see what happens. The sheet says 25-50% more capacity is possible so I will see, I still have 3 120 and 3 135-24 rolls to shoot.
    Kodak says 30sec per stop, when at the 3min 15sec for n.

  7. #17
    hpulley's Avatar
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    Quote Originally Posted by SMBooth View Post
    Harry, so you have just mixed the complete 1L kit and then poured out what you need for the developing tank, processed then back into same bottle? Any change in development time as you go along?

    Shane
    The 1L powder kit cannot be mixed in parts. You can just use 500mL or 250mL at a time instead of pouring it back but it doesn't really extend the life of it. I had a bunch to do so yes, I just poured back what I used each time.

    I've started adding 30s or so to the time so 4:00 dev and 7:00 blix. The blix is oxidizing so I'm not sure how much longer it will last but I'm already past the advertised capacity. I would still like to get another 3-6 rolls out of it if I can. I have another 3 rolls of Portra 160NC 120 and 3 of Superia 800 135-24.
    Harry Pulley - Visit the BLIND PRINT EXCHANGE FORUM

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  8. #18
    hpulley's Avatar
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    Quote Originally Posted by Athiril View Post
    Kodak says 30sec per stop, when at the 3min 15sec for n.
    For some reason the Kodak and Tetenal/Unicolor instructions are different for pushing, much longer for Tetenal/Unicolor. I don't know why.
    Harry Pulley - Visit the BLIND PRINT EXCHANGE FORUM

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  9. #19

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    Push times will also vary with the film used. Kodak say 30 sec. per stop for their Portra films specifically. Tests should be done to find push times for other films. The one stop push time will be the time that makes a tone exposed in such a way that it will end up two print values brighter than middle gray with normal processing into a tone three print values brighter.
    2F/2F

    "Truth and love are my law and worship. Form and conscience are my manifestation and guide. Nature and peace are my shelter and companions. Order is my attitude. Beauty and perfection are my attack."

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  10. #20
    Tony-S's Avatar
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    Has anyone used this kit with 4x5 film, such as one of the Portras? I assume you can tray develop so long as you manage your temps.

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