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HELP! Spots with home developing

Discussion in 'Film Camera Forum' started by KillRamsey, Sep 2, 2015.

  1. KillRamsey

    KillRamsey SC Hall of Famer

    Jun 20, 2012
    Cambridge, MA
    Kyle
    A good friend has gotten into coffee developing at home, and the first roll or two went fine. This roll, which was Foma 400 (new to him, and me), came out with these awful spots in the emulsion, not on top. Anyone know what caused this?

    21075361262_2277e29776_o. BrianSpots by gordopuggy, on Flickr
     
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  2. dalethorn

    dalethorn Guest

    That sure looks like something that's been damaged by age or radiation, or excessive heat.
     
  3. ReD

    ReD SC Hall of Famer

    Mar 27, 2013
    try forever film
     
  4. KillRamsey

    KillRamsey SC Hall of Famer

    Jun 20, 2012
    Cambridge, MA
    Kyle
    Not sure I want to set up another account.
     
  5. Luke

    Luke Super Moderator

    Nov 11, 2011
    Milwaukee, WI USA
    Luke
    "did the coffee not dissolve?", asked the man who knew nothing about developing film with coffee.
     
    Last edited: Sep 2, 2015
  6. KillRamsey

    KillRamsey SC Hall of Famer

    Jun 20, 2012
    Cambridge, MA
    Kyle
    His guess, now, is that perhaps the salt precipitated out of solution, if the house got too cold.
     
  7. Luke

    Luke Super Moderator

    Nov 11, 2011
    Milwaukee, WI USA
    Luke
    FWIW, I think it looks cool with the specs.....kinda like it's snowing in summer
     
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  8. Arbib

    Arbib SC Regular

    54
    Aug 18, 2015
    Okay, I will offer real help....:)

    • Buy a kitchen Faucet water filter (200ppm minimum) and connect it to the faucet. (or buy distilled water for all the wet processes), Don't buy the cheapest water filter, they have a poor connector to the faucet)
    • When you mix any chemicals.... USE FILTERED WATER ONLY
    • When you wash the film, USE FILTERED ONLY
    • Use Photo Flo as the last chemical before drying (a 3-5 drops for 600ml -- a two reel tank)
    • When you are washing the film (15m), turn on the bathroom shower on HOT, and close the door, turn it off in 12m, and reclose the door. (to keep the steam in the room)
    • Turn off the AC when you first turn on the hot water shower...
    • After the Photo Flo is done, go to the bathroom and close the door, hang the film in the steamed bathroom WITHOUT ANY SQUEEGEE!!!!
    • Leave the bathroom and close the door
    • Wait a few hours until dry. Or after an hour or so, you can use a hair dryer on a medium heat to dry both sides if you need it faster
    Steaming the bathroom will cause any dust in the air to collect on the water mist, and drop to the floor.

    It took me a few rolls to get this workflow where it eliminated dust or hard water spots (minerals in the water) on my films.
     
    Last edited: Sep 3, 2015
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  9. KillRamsey

    KillRamsey SC Hall of Famer

    Jun 20, 2012
    Cambridge, MA
    Kyle
    MUCH appreciated, and I forwarded it on.
     
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  10. demiro

    demiro Serious Compacts For Life

    527
    Dec 15, 2011
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  11. Arbib

    Arbib SC Regular

    54
    Aug 18, 2015
    Try a stock developer... like D76, or HC110, never tried home "brewed" caffenol.... I would think the coffee needs to 100% dissolved in filtered water.
    You want success at first, so standard developers are best to start with.
    A bottle of HC110 will last over a year with occasional use stored in a dark cabinet that is an air conditioned room.
     
  12. ReD

    ReD SC Hall of Famer

    Mar 27, 2013
  13. Arbib

    Arbib SC Regular

    54
    Aug 18, 2015
    Wow.. some great stuff... click on "more" for tags... under "C"
     
  14. trisberg

    trisberg SC Veteran

    251
    Jul 5, 2011
    New Hampshire
    Here is a report of a similar issue. Looks like the type of fixer matters.
     
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  15. KillRamsey

    KillRamsey SC Hall of Famer

    Jun 20, 2012
    Cambridge, MA
    Kyle
    Thank you - I sent it on.