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Thread: Chemical question

  1. #1
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    Chemical question

    Hi,

    I am just starting doing film development (B&W). I ordered Ilford fixer

    http://www.bhphotovideo.com/c/search...tialSearch=yes

    It just arrived today and when I looked at the instructions for dilution and times, it only mentions paper development, not film.

    On B&H site, it says that's for both. Why wouldn't be info for film in there if it is for film and what dilution and times should I use?

    Thanks for any advice.

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    Re: Chemical question

    According to this: http://www.darkroom.ru/info/manuals/...manual_eng.pdf

    It looks like you should be fixing your film for 2-5 minutes with a 1:4 dilution. If you didn't also order hardener, you might want that for your film as well. It really helps to harden the emulsion and prevent subsequent scratches, but you generally don't want hardener in fixer for prints, as it greatly increases washing times an can have a detrimental effect on toning.

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    Re: Chemical question

    Quote Originally Posted by pfigen View Post
    ...

    It looks like you should be fixing your film for 2-5 minutes with a 1:4 dilution. If you didn't also order hardener, you might want that for your film as well....
    Thanks Peter. Although the suggested times are 2 or more than double the time

    This is my first time developing film so I don't have any experience with it. The post with the Caffenol got me interested and I will give it a shot.

    I wasn't sure if I got the right fixer since on it there is no reference to film whatsoever. We'll see how it comes out

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    Administrator Bob's Avatar
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    Re: Chemical question

    The rule of thumb is that you fix film for twice the clearing time.
    Look at a the film and if it appears a bit cloudy, then put it back in the fixer. When it just clears, then double that time.
    -bob

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    Re: Chemical question

    Quote Originally Posted by Bob View Post
    The rule of thumb is that you fix film for twice the clearing time.
    Look at a the film and if it appears a bit cloudy, then put it back in the fixer. When it just clears, then double that time.
    -bob
    Bob,

    So, let's say I let it fix for 3 minutes. Take the film out (no washing) and look at it and if cloudy, put it back in for let's say another 30 seconds. After the 30 seconds it looks good so the normal time would be 7 min?

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    Re: Chemical question

    Quote Originally Posted by Valentin View Post
    Bob,

    So, let's say I let it fix for 3 minutes. Take the film out (no washing) and look at it and if cloudy, put it back in for let's say another 30 seconds. After the 30 seconds it looks good so the normal time would be 7 min?
    That is correct.
    -bob

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    Re: Chemical question

    Quote Originally Posted by Bob View Post
    That is correct.
    -bob
    Thanks.

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    Re: Chemical question

    Better yet, clip off a bit of the leader and drop it in a cup of the fixer in light. Then you can determine the clearing time without removing your reel every couple minutes.

    In general though, I use Ilford Rapid Fixer at 1:4 for about 4 mins. I don't use hardener.

  9. #9
    tokengirl
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    Re: Chemical question

    Quote Originally Posted by Tim Gray View Post
    In general though, I use Ilford Rapid Fixer at 1:4 for about 4 mins. I don't use hardener.
    Pretty much the same for me.

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    Re: Chemical question

    Thank Tim and Tokengirl (what's your name ).

    I guess I will shoot a couple of rolls at the same values and try different times to see which one is better. It's not like it's going to break the bank (especially if you compare with the digi backs ).

    I can't wait to get the damn materials. It takes a week for stuff to get from Montana to PA and only 3 days to get albums from Italy to PA

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    Re: Chemical question

    Where are you in Philly? I'm near the airport...

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    Re: Chemical question

    Quote Originally Posted by Tim Gray View Post
    Where are you in Philly? I'm near the airport...
    I'm outside Philly: Blue Bell. Plymouth Meeting area. We should get together sometime.

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    Re: Chemical question

    I use Rapid Fix for 5 minutes. Didn't ever test it. Never a problem (that I can see).

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    Re: Chemical question

    Quote Originally Posted by mathomas View Post
    I use Rapid Fix for 5 minutes. Didn't ever test it. Never a problem (that I can see).
    Thanks Mike.

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    Re: Chemical question

    Definitely. Right up 476. I'm at exit 3.

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    Re: Chemical question

    Dumb question: how do you clean your stuff? Do you just rinse with water or do you use soap? (as I'm processing my very first film; finger crossed).

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    Re: Chemical question

    What stuff? You mean your tank and reels?

    I put mine in the dishwasher. But I am using the stainless tank and reels. I don't know if I would do it with the plastic stuff.

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    Re: Chemical question

    Quote Originally Posted by tokengirl View Post
    What stuff? You mean your tank and reels?

    I put mine in the dishwasher. But I am using the stainless tank and reels. I don't know if I would do it with the plastic stuff.
    Yes, the graduates, tank and reels. I have the plastic one (it was the only one that came with the agitator; the stainless steel ones didn't).

    I only "cleaned" it with warm water. I don't know if I'm courageous enough to put it in the dishwasher due the chemicals.

    My first ever development was a success. I'll post pictures when I scan them.

    Thanks.

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    Re: Chemical question

    Usually a rinse with warm water is all that is needed.
    There are very few processing chemicals that require a detergent notably some color processes.
    -bob

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    Re: Chemical question

    Quote Originally Posted by Bob View Post
    Usually a rinse with warm water is all that is needed.
    There are very few processing chemicals that require a detergent notably some color processes.
    -bob
    Thanks Bob. The only real darkroom chemical was the fixer. I used the Caffenol method that Carl mentioned:

    http://forum.getdpi.com/forum/showthread.php?t=21881

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    Re: Chemical question

    After the negs are hung I fill the sink with pure-hot water and stir the dev equipment around with my hand (ouch). Then I empty and refill with less-hot water and stir around more. Then I empty the sink and run water over the bits and place them on folded paper towels to dry. In order to avoid dust, I don't leave them out too terribly long (only overnight, in Denver, CO).
    Last edited by mathomas; 11th January 2011 at 08:54.

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    Re: Chemical question

    What can I say: I LOVE IT. Here is one image from my very first film developed.

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    Re: Chemical question

    Looks good!

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    Re: Chemical question

    Quote Originally Posted by Tim Gray View Post
    Looks good!
    Thanks. It looks better than I expected

    When I first took it out of the tank and I saw there is something on it (and looked OK), I was like a kid in a candy store.

    Also, I really like the tint that comes out of it.

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