Englarger Problem (maybe)

Discussion in 'The Darkroom' started by darin3200, Jun 11, 2005.

  1. darin3200

    darin3200 TPF Noob!

    Joined:
    May 3, 2005
    Messages:
    2,078
    Likes Received:
    28
    Location:
    Des Moines, Iowa
    I was making some prints the other day using the same techniques as always, I went and put an exposed sheet of Ilford RC in my developer and the print came out severly underexposed. I tried with another sheet, this time frying it at f/3.5 for about 20 seconds and the sheet came out still slightly underexposed.
    I was busy then, so I went back to the darkroom today and made a new batch of developer. Same results as last time after 1.5 minutes in the developer. With the underexposed print still in developer I turned on a large lamp and the paper immediately turned black. So that makes me think it isn't a chemical or paper problem but something with my enlarger.

    Any help is appreciated
     
  2. Christie Photo

    Christie Photo No longer a newbie, moving up!

    Joined:
    Jan 7, 2005
    Messages:
    7,006
    Likes Received:
    67
    Location:
    Kankakee, IL
    Well.... could be simply that you have a very dense (overexposed) negative.

    Has anything fallen into the enlarger... between the negative carrier and the lens? Did you double-check the aperature of the lens? Are you using a condenser enlarger? Are you printing from the same size negative? Whew!

    We figure this one out.
     
  3. KevinR

    KevinR TPF Noob!

    Joined:
    Feb 1, 2005
    Messages:
    1,204
    Likes Received:
    4
    Location:
    Dearborn, MI
    Knowing that your using a 23c. I would say that as stated above, it might be a dense negative. I was printing an overexposed neg that took 1min 30sec and then some burn in to get it right.

    Some other options:
    Need a new bulb. Fairly cheap fix if thats the problem.

    Voltage. This is a long shot. If this is plugged into a circuit that has some big appliances, and there running, that could through voltage off some.

    I would start at printing something that you have printed before and see what happens.
     
  4. darin3200

    darin3200 TPF Noob!

    Joined:
    May 3, 2005
    Messages:
    2,078
    Likes Received:
    28
    Location:
    Des Moines, Iowa
    Yeah, it was the negative. I was using an older negative of C-41 black and white kodak which is much more opaque than the Kodak T-Max. I ended up doing about a 45 second exposure instead of 5 seconds.
     

Share This Page