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Darkroom advice

  • 03-11-2013 1:03pm
    #1
    ciaran_mc
    Closed Accounts Posts: 3 ✭


    Hi,

    I have decided to get back into printing black and white in the darkroom again it's been awhile since I last done it.

    I was hoping someone might be able to clarify a few things,

    I have AGFA r09 film developer, Ilford rapid fixer and Ilford multigrade paper developer, do I need stop bath or should what I have work?

    Also for developing the film do people go buy the ratio and time on the bottle of developer or by the packet on the film? I've noticed that they are both different.

    Thanks


Comments

  • #2
    knickerbocker
    Registered Users, Registered Users 2 Posts: 233 ✭✭knickerbocker


    What you have is fine, use a dribble of vinegar in water at 20 degrees C as a stopper, this is just to neutralise the developer before fixing.
    As for the film developer, I would go with what's on the bottle for the mix ratio........... as for time, start with as instructed by the chemicals, after a few rolls you'll learn to extend or decrease the time to suit your taste.


  • #3
    ciaran_mc
    Closed Accounts Posts: 3 ✭ciaran_mc


    knickerbocker wrote: »
    What you have is fine, use a dribble of vinegar in water at 20 degrees C as a stopper, this is just to neutralise the developer before fixing.
    As for the film developer, I would go with what's on the bottle for the mix ratio........... as for time, start with as instructed by the chemicals, after a few rolls you'll learn to extend or decrease the time to suit your taste.

    Thanks for the quick reply,

    On the bottle it's 1:15 at 6minutes and on the film it's 1:25 at 11 minutes so it probably works out close enough,

    Would normal kitchen vinegar do? Will give it a bash and try it out. Would it be ok to use vinegar when doing prints too? Or would you need a stopper for that?


  • #4
    knickerbocker
    Registered Users, Registered Users 2 Posts: 233 ✭✭knickerbocker


    Go with what's on the bottle.

    Yes, ordinary vinegar is good, and can be used for both film and paper, vinegar is just acetic acid, as is stopper.
    For the film you need to use for one to two minutes, shaking constantly. And for the paper 10 to 20 seconds.

    Temperature is the key, usually 21 degree's C is the norm, but follow what the chemical manufacturer states.


  • #5
    thefizz
    Registered Users, Registered Users 2 Posts: 582 ✭✭✭thefizz


    I presume it's RO9 Special you have. If so, I'd use a 1:30 dilution and double the times on the bottle. The suggested times for 1:15 are very short, especially those at 3 or 4 minutes.

    Don't use any acid stop on film as it can cause pin holes. A few rinses in plain water will do just fine.

    Do use the acid stop for printing though.


  • #6
    vintagecosmos
    Registered Users, Registered Users 2 Posts: 851 ✭✭✭vintagecosmos


    thefizz wrote: »
    I presume it's RO9 Special you have. If so, I'd use a 1:30 dilution and double the times on the bottle. The suggested times for 1:15 are very short, especially those at 3 or 4 minutes.

    Don't use any acid stop on film as it can cause pin holes. A few rinses in plain water will do just fine.

    Do use the acid stop for printing though.

    +1 on this. Double the times and you still get great results. I spoke with Gunns and they stand by this developer for everything but Delta 3200. Had another chat with a photography lecturer and he would use the same.

    If it is the R09 Special you can see dev times online here http://www.digitaltruth.com/devchart.php?Film=&Developer=Studional&mdc=Search&TempUnits=C

    Studional is its american name. (copyright issues).

    I started shooting Kentmere 400 an inexpensive BW film. Dev time is 8 mins at 1:30 ratio. Its hard to find any info on this film online.


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