Thinking of a change - need more contrast

Discussion in 'B&W: Film, Paper, Chemistry' started by Chris Harvey, Nov 11, 2012.

  1. Chris Harvey

    Chris Harvey Member

    Messages:
    17
    Joined:
    Apr 13, 2010
    Shooter:
    Medium Format
    I've been using Rodinol at 1/50 dilution to develop FP4 film and to be honest could do with a bit more contrast in my negatives. My stock of film and Rodinol is just about finished so i need to replace soon - not sure what to go with to give me more contrast any ideas? oh BTW I'm shooting with a Bronny SQAi and a 1950s Zeiss Ikon Nettar and in 35mm land a Nikon F4.

    Thanks

    Chris
     
  2. cliveh

    cliveh Subscriber

    Messages:
    4,782
    Joined:
    Oct 9, 2010
    Shooter:
    35mm RF
    How about D76 at 1:1
     
  3. MartinP

    MartinP Member

    Messages:
    1,487
    Joined:
    Jun 23, 2007
    Location:
    Netherlands
    Shooter:
    35mm
    Less exposure and more processing time (within moderation). Or you could try Rodinal at 1:25, or ID11 1+1 (basically the same as D76, as per post #2). Or even raw Dektol, if one wants to get silly about it!
    :wink:
     
  4. Bob Carnie

    Bob Carnie Subscriber

    Messages:
    5,480
    Joined:
    Apr 18, 2004
    Location:
    Toronto-Onta
    Shooter:
    Med. Format RF
    develop longer or give HC110 and play with the dilutions
     
  5. Richard S. (rich815)

    Richard S. (rich815) Subscriber

    Messages:
    4,962
    Joined:
    Jan 14, 2003
    Location:
    San Francisco
    Shooter:
    Multi Format
    Use the Rodinal at 1+25.
     
  6. Gerald C Koch

    Gerald C Koch Member

    Messages:
    6,329
    Joined:
    Jul 12, 2010
    Location:
    Southern USA
    Shooter:
    Multi Format
    Dektol 1+5 to 1+7 should give you plenty of contrast.
     
  7. Jean Noire

    Jean Noire Member

    Messages:
    587
    Joined:
    Oct 1, 2006
    Shooter:
    Multi Format
    +1.
    Jean
     
  8. ic-racer

    ic-racer Member

    Messages:
    7,483
    Joined:
    Feb 25, 2007
    Location:
    Midwest USA
    Shooter:
    Multi Format
    Increase development time by 25% to increase contrast. No need to change developers.
     
  9. Bill Burk

    Bill Burk Subscriber

    Messages:
    5,025
    Joined:
    Feb 9, 2010
    Shooter:
    4x5 Format
    Ha, yes and at 1:2 it's almost like lith.

    PE wrote me the rule of thumb when it comes to Dektol for film... Time same as dilution...

    1+5 for 5 minutes
    1+7 for 7 minutes
     
  10. Richard S. (rich815)

    Richard S. (rich815) Subscriber

    Messages:
    4,962
    Joined:
    Jan 14, 2003
    Location:
    San Francisco
    Shooter:
    Multi Format
    "Rodinal can be used for contrast control by varying the dilution, allowing you to use a single bottle to produce negatives to suit your requirements. The recommended 1+50 diluton produces crisp negatives of normal contrast with slightly more obvious grain than standard fine-grain developers. Lower dilutions (eg. 1+25) produce high contrast images; whereas at higher dilutions (eg. 1+75 or 1+100) Rodinal has a compensating effect and can be used to render high contrast scenes with normal contrast."

    All right here:

    http://www.digitaltruth.com/store/cart/Adox-Adonal-Agfa-Rodinal-500ml.html
     
  11. Ian Grant

    Ian Grant Subscriber

    Messages:
    18,094
    Joined:
    Aug 2, 2004
    Location:
    West Midland
    Shooter:
    Multi Format
    I never liked Rodinal at 1 to 50, except for high contrast situations, on the other hand I found 1+25 too contrasty except for very low contrast lighting, so instead for about 20 years I used Rodinal at 1 to 37.5 which is the same as 2 to 75 with superb results. That gave me negatives which were very deasy to print any way I wanted.

    Ian
     
  12. EASmithV

    EASmithV Member

    Messages:
    1,925
    Joined:
    Aug 22, 2008
    Location:
    Maryland
    Shooter:
    Multi Format
    try rodinal 1:25 or 1:32
     
  13. Colin Corneau

    Colin Corneau Subscriber

    Messages:
    1,878
    Joined:
    Nov 20, 2007
    Location:
    Brandon, MB
    Shooter:
    Medium Format
    As has been noted by others --

    You increase contrast by increasing development time. Try adding 20 or 30% time to development and see how you like the results. You'll see a difference.
     
  14. MartinP

    MartinP Member

    Messages:
    1,487
    Joined:
    Jun 23, 2007
    Location:
    Netherlands
    Shooter:
    35mm
    Something which I foolishly omitted in my earlier post...

    With Rodinal and APX100 I (and the rest of the world, obviously) found that agitation and temperature (with time compensation, use the Ilford graph) could play a part in altering contrast too. So you could consider your agitation, and go to two inversions in place of one for example. Increasing temperature by a degree and compensating the time could also help do the job.

    Rodinal is a very adjustable developer and this can be handy for very harsh-contrast sunlight when I've used it down to 17,5C. Equally (and as a slight warning for Googlers), this is also why it is not an ideal beginner's developer of course as, assuming they would want repeatable results, a newcomer might struggle with consistency.
     
  15. grommi

    grommi Member

    Messages:
    142
    Joined:
    Mar 14, 2010
    Location:
    continental
    Shooter:
    Multi Format
    Dilution, time and agitation are the magic words. With almost every developer you can get flat or contrasty negs.
     
  16. George Collier

    George Collier Member

    Messages:
    1,064
    Joined:
    Feb 23, 2005
    Location:
    Richmond, VA
    Shooter:
    Multi Format
    As others have said, I would change only time (add 25% for starters, then adjust)or if more time is not enough, higher temperature - but I would not change exposure unless your shadows have too much density. Exposure controls density (shadow detail), development controls contrast by expanding or contracting highlights, as a general rule.
     
  17. grommi

    grommi Member

    Messages:
    142
    Joined:
    Mar 14, 2010
    Location:
    continental
    Shooter:
    Multi Format
    I don't agree. Rodinal is a very foolproof developer with an extremely long shelf life of the concentrate. Perfect for beginners. The mentioned faults can be made with every developer. Use million times prooved standard development 1:25 and given standard times and get nice results. No experiments needed at all, but of course possible. Why always complicating things? Life can be so easy - sometimes.....
     
  18. michael_r

    michael_r Subscriber

    Messages:
    6,573
    Joined:
    Feb 2, 2010
    Location:
    Montreal, Canada
    Shooter:
    Multi Format
    As Bob, Gerald and ic racer have said, increase development time or increase the concentration to 1+25. No need to change developers unless you are looking for a specific high contrast look. Do not decrease exposure. Decreasing film exposure will not increase contrast.
     
  19. CPorter

    CPorter Member

    Messages:
    1,662
    Joined:
    Feb 2, 2004
    Location:
    West KY
    Shooter:
    4x5 Format
    I don't think you should put too much emphasis on the film, but more development equal more separation between the high end of the gray scale and the low end of the gray scale, true for any film/dev combo-----but mind your important textural high values that you don't lose them with too much development. Play with dilutions, and a film/dev combo with a longer toe and a somewhat steeper rise in the curve through Zones V, VI, VII, and VIII as in TMX and TXP developed in HC-110 will provide more inherent contrast, at least in my experience. But also remember the inherent contrast of the scene too, regardless of film and dev, on a gray day, shadows will contain much more diffuse light. So to create more separation from the low end of the scale from the high end, reduce exposure to the shadows and bump up the development time and that will introduce more contrast to the negative as well.
     
  20. Shawn Dougherty

    Shawn Dougherty Member

    Messages:
    4,184
    Joined:
    Jul 22, 2004
    Location:
    Pennsylvania
    Shooter:
    4x5 Format
    ...and another echo. No need to change materials, just change how you use them. Preferably one variable at a time until you have what you want.