Switch to English Language Passer en langue française Omschakelen naar Nederlandse Taal Wechseln Sie zu deutschen Sprache Passa alla lingua italiana
Members: 69,761   Posts: 1,516,109   Online: 932
      
Results 1 to 10 of 10

Thread: uncurling film

  1. #1

    Join Date
    Nov 2004
    Location
    Savannah, GA
    Shooter
    4x5 Format
    Posts
    8

    uncurling film

    Does anyone have any tricks or ideas on how to uncurl 120 film after development? I just can't stand having my negative sleeves curl up on me. Anyone have any ideas?

  2. #2
    Kevin Caulfield's Avatar
    Join Date
    Aug 2004
    Location
    Melbourne, Australia
    Shooter
    Multi Format
    Posts
    3,091
    Blog Entries
    5
    Images
    52
    Any particualr type of 120 film you're having trouble with? Are you using film clips when drying your film? The only film I've had curling issues with is Kodak B&W IR 35mm film, probably because it has a very thin base. Usually any film with a little bit of curl is fine after a couple of days in archival plastic file sheets.

  3. #3

    Join Date
    Mar 2003
    Location
    Walnut Creek, California
    Shooter
    Large Format
    Posts
    558
    Images
    14
    Quote Originally Posted by Jepaul20
    Does anyone have any tricks or ideas on how to uncurl 120 film after development? I just can't stand having my negative sleeves curl up on me. Anyone have any ideas?
    I have had this happen with the Bergger films and some of the J&C films. The problem I believe is mechanical (I was never any good at physics) and the emulsion/backing contains energy that causes it to curl. Probably made worse by the material used.

    So my cure, twofold. I hang a very heavy weight (three leaded film clips) when drying and leave in my drying tent overnight. Then into the negatives sheets then under a very heavy book. Does it work, well sometimes it does, other times it looks OK until you take the negative out of the sleeve then it curls up like a pill bug ---arrgh.

    Mike

  4. #4

    Join Date
    Oct 2004
    Shooter
    Multi Format
    Posts
    726
    I agree with Mike: use heavily weighted film clips when drying, then put the negs in sleeves under a heavy book (or pile of heavy books). I use a lot of Kodak Tech Pan, which is also a terror for curling, again because of the thin base. I have just been printing a load of 35mm nitro cellulose negs taken during WWII and kept ever since rolled up tight in film cans. They uncurled the same way, although that one took a while. If all else fails, once the negs are in the sleves roll them up against the curl and keep them that way for a day with rubber bands.

    David.

  5. #5

    Join Date
    Mar 2004
    Shooter
    Multi Format
    Posts
    965
    Images
    58
    I dry my 120 film in the steel reels, in a PVC tube with a hair dryer duct taped to one end. I just put the film in the sleeves, and the weight of the other sleeves and contact sheets in the binder flatten it. Haven't had any trouble yet, which surprised me since I used to dry my film by hanging with weights on the bottom. BTW, this is for 120 Macophot (efke) and 35mm tri-x.

    André

  6. #6
    VoidoidRamone's Avatar
    Join Date
    Aug 2004
    Location
    New York City
    Shooter
    Multi Format
    Posts
    490
    Two films that curl a lot for me are JandC Pro 100 and Arista.EDU 400 (I haven't used the 100 or 200 yet, so I'm not sure about those). The JandC eventually got flat after I got them sleeved and under some weight for a while, but I can't get the Arista.EDU flat no matter what I do.
    -Grant

  7. #7

    Join Date
    Dec 2004
    Shooter
    Multi Format
    Posts
    168
    While some "cheap" film may be inherently "curly", weighted, slow drying (without) heat, helped me.

  8. #8
    rbarker's Avatar
    Join Date
    Oct 2004
    Location
    Rio Rancho, NM
    Shooter
    Multi Format
    Posts
    2,222
    Images
    2
    The weighted clips that have been suggested seem to help, as well as slower drying. I've also used the reverse curl trick, both with the cut strips in acetate sheets and with the whole roll, leaving it for a couple of days. The reverse curl it imparts flattens quickly, and the film seems to stay pretty flat after that point.
    [COLOR=SlateGray]"You can't depend on your eyes if your imagination is out of focus." -Mark Twain[/COLOR]

    Ralph Barker
    Rio Rancho, NM

  9. #9
    djklmnop's Avatar
    Join Date
    Jan 2004
    Shooter
    4x5 Format
    Posts
    230
    Images
    9
    I notice that when I leave the film hung until the next day, they usually end up nice and flat. When I take em out after they are dry enough for storage, they end up curling.
    Money is not the problem. The problem is, I don't have any.

  10. #10
    rogueish's Avatar
    Join Date
    Apr 2004
    Location
    3rd Rock
    Shooter
    Multi Format
    Posts
    877
    I have found when the humdity is very low (ie winter) the film tends to curl more. If it is low, try increasing the humidity to 40%+. It will increase your drying time but might help with the curl.
    Last edited by rogueish; 01-12-2005 at 07:00 AM. Click to view previous post history. Reason: typing too fast



 

APUG PARTNERS EQUALLY FUNDING OUR COMMUNITY:



Contact Us  |  Support Us!  |  Advertise  |  Site Terms  |  Archive  —   Search  |  Mobile Device Access  |  RSS  |  Facebook  |  Linkedin