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  1. #41
    Thomas Bertilsson's Avatar
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    Is this use of Photoflow problematic?

    Quote Originally Posted by polyglot View Post
    You can use Photoflo in the tank without any problem too.
    Can you categorically claim this to be true?
    "Often moments come looking for us". - Robert Frank

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  2. #42
    fotch's Avatar
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    Quote Originally Posted by polyglot View Post
    Pulling the film off the reel before photoflo'ing it will often cause fine scratches where the corners of the film rub against the emulsion. Leave it on the reel for protection while it's in photoflo; a quick rinse under the hot tap will completely clean the reel once the film is hung up.
    Well then you have a problem. You eventually have to remove the film from the reel to use it. Just be careful, never had a problem.
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  3. #43
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    Quote Originally Posted by Thomas Bertilsson View Post
    Can you categorically claim this to be true?
    I've done it, er, 370 times now to no ill effect. My spirals are completely clean, they load perfectly and do not contaminate the developer. Do you have any evidence to the contrary?

    Quote Originally Posted by fotch
    Well then you have a problem. You eventually have to remove the film from the reel to use it. Just be careful, never had a problem.
    Well obviously, it comes out either to be hung up to dry or to be sleeved (if you dried it the reel, which I don't). The problem comes if you unspool it (say, a 120 roll) into an icecream container and slosh it a bit in the photoflo. The film will rub on the container a little, and the corners of the film will rub on a neighbouring bit of film, causing tiny hairline scratches - you have to really look hard for them.

  4. #44
    fotch's Avatar
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    I remove from the reel and seesaw the film in a bowl or tray of Photo-flow. It is the same technique that Kodak shows in old books before tanks were available or popular and film was ortho so they used under a red safelight.

    Never had any problems with damage to film. Very easy and fast.
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  5. #45
    Thomas Bertilsson's Avatar
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    Quote Originally Posted by polyglot View Post
    I've done it, er, 370 times now to no ill effect. My spirals are completely clean, they load perfectly and do not contaminate the developer. Do you have any evidence to the contrary?
    I do. When I used Photoflo 200 in the tank, next film developing session I would get these bubbles caught by the film reel, preventing the developer from getting to the film surface, rendering those spots basically undeveloped. It's just at the edge of the 120 film frames, but still irritating as it does affect a portion of the image area.
    I did not use excessive amounts of wetting agent, and I do give the dev tank a good couple of whacks on a folded up towel on the counter top to attempt dislodging any such bubbles, and still had this occur. Once I stopped using Photoflo in the tank the problem persisted for a while until I bought a new tank and new reels, and the problem went away.
    "Often moments come looking for us". - Robert Frank

    "Make good art!" - Neil Gaiman

    "...the heart and mind are the true lens of the camera". - Yousuf Karsh

  6. #46

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    I have been seesawing rolls of film through Photoflo in distilled water in a Tupperware container with no problems for forty years. I only use the mixture for one session and then discard it, thoroughly rinse and dry the container. Since I just use a few drops of Photoflo each time it is the least costly of all the materials involved.

    http://www.jeffreyglasser.com/

  7. #47

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    Quote Originally Posted by Sirius Glass View Post
    I have had none of those issues with any of the products you mentioned.
    None for me either. But I use only 2 or 3 drops of Photo-Flo for 250 ml of water. Just enough to reduce the surface tension of the water. Photo-Flo uses an anti-foaming agent that contains a tallowate component which can leave a greasy residue. A periodic soaking overnight in a 2% solution of sodium carbonate helps clean any reels.
    A rock pile ceases to be a rock pile the moment a single man contemplates it, bearing within him the image of a cathedral.

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  8. #48
    Rafal Lukawiecki's Avatar
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    Quote Originally Posted by Sirius Glass View Post
    The problem using PhotoFlo in a Jobo Expert Tank has been validated by Jobo and Jobo makes that recommendation for those tanks and those tanks alone.
    As I don't use Jobo, I'm not familiar with that advice, Sirius. Would you mind sharing if their advice also applied to other wetting agents, such as Ilfotol or LFN? Many thanks.
    Rafal Lukawiecki
    See rafal.net | Read rafal.net/articles

  9. #49

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    I doubt Ilfotol is any different than Photoflo-200. Even the dilution is the same.

  10. #50
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    Quote Originally Posted by jeffreyg View Post
    I have been seesawing rolls of film through Photoflo in distilled water in a Tupperware container with no problems for forty years. I only use the mixture for one session and then discard it, thoroughly rinse and dry the container. Since I just use a few drops of Photoflo each time it is the least costly of all the materials involved.

    http://www.jeffreyglasser.com/
    Amen. Simple, easy, works.
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