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Thread: Negative negatives - using SP445 Tank

  1. #1

    Negative negatives - using SP445 Tank

    Click image for larger version. 

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ID:	199780My further adventures in 4x5!
    It's been a while since I could get out, because of 'the heat'(Australia!)Click image for larger version. 

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ID:	199779 - n take some more pix.
    (Pix attached)
    Here is the latest batch of 4(This is the 8th batch of 4!) - without success!
    *The only change I made this time was to - "pre-wash" the negs....as per suggested.
    As you can see, it is still 'a mess'!
    Any suggestions most welcome!!

    Conditions: light, overcast. (F22-F32...1-2 secs)
    Recap:
    Tank is SP445(Stearman Press)
    Film: Fomapan 100.
    Ilford chemicals.
    temp: 21c+
    5minute development, agitating every 30 secs.(ilfosol3)
    Stop bath: 60 sec
    Fix: 4mins
    Wash: 5 mins rinse, 5m 'washaid', 5m rinse

  2. #2

    Join Date
    Dec 2019
    Posts
    60

    Re: Negative negatives - using SP445 Tank

    I'm about to try my first film developing this coming weekend using the 445 tank. While I can't offer you any suggestions, I can only hope to encourage you. You have two sheets developed more than me!!!

  3. #3

    Join Date
    Oct 2006
    Posts
    505

    Re: Negative negatives - using SP445 Tank

    Bizarre. I've only had great success with the sp445 since I got it. Is this the same thing you are getting if you processed it your old way...before the sp445?

    I'm assuming you are filling the tank so check on that. Pre wash I see you are doing. 21c+ is about 70 which is fine. Were the Ilford chems powder and you mixed with h20 or was it liquid and mixed with h20?

    I don't see an "agitate for the 1st minute or so" up there. Did you do that?

    Typically, pour, agitate for 1 minute, 5 sec every 30. 5 min development time is short (but that's just me, I like longer dev times). I would 6 minutes in hc110 Dil b on 8x10 only because I do them 1 at a time in a tray and 6 minutes is better than the usual 12 minutes per sheet if I do PMK or d76.
    --

  4. #4

    Join Date
    Dec 2014
    Location
    Suwanee, GA
    Posts
    500

    Re: Negative negatives - using SP445 Tank

    Just because the tank holds four sheets doesn't mean you have to kill 4 sheets. Find a nearby friend/mentor and figure out where the issue lies one sheet at a time.
    Adventure is worthwhile in itself. ... Never interrupt someone doing what you said couldn't be done. -- Amelia Earhart
    http://www.searing.photography

  5. #5

    Join Date
    Apr 2015
    Location
    Purcellville, VA
    Posts
    423

    Re: Negative negatives - using SP445 Tank

    I have also used the SP445 with great success from the first sheet. I do not use a pre-soak. The patterns you're showing could result from lack of initial agitation, a poor agitation pattern, underdevelopment (which appears to be happening in any case), and/or inadequately mixed developer. The only other thought that comes to mind is a tank that had not been proerply washed after the fix, but that would not account for your first-run problems. The recommended agitation, as you probably read (sorry, I didn't see your first thread), is simply end-over-end (top and bottom). I am used to 10 seconds on the minute, duirng which I give four full inversions (upside-down, then, continuing in the same direction, like doing a flip, right-side up), but the 5-second routine should be fine as long as it is steady and consistent. I hope you're able to resolve this soon.
    Philip U.

    Sine scientia ars nihil est. (Without science/knowledge, art is nothing.)
    https://www.flickr.com/photos/156933346@N07/

  6. #6

    Re: Negative negatives - using SP445 Tank

    Quote Originally Posted by AdamD View Post
    I'm about to try my first film developing this coming weekend using the 445 tank. While I can't offer you any suggestions, I can only hope to encourage you. You have two sheets developed more than me!!!

  7. #7

    Re: Negative negatives - using SP445 Tank

    Interested to hear how you go with sp445!!
    It IS a great system; I just have to master it!
    I am on my 32nd sheet! Not one so far, has come out successfully!
    BIZARRRRRRE!
    But getting some handy 'tips' from peole on here!
    Thanks for your good wishes!
    G

  8. #8

    Re: Negative negatives - using SP445 Tank

    Thanks a lot for your response and tips!
    This was my first time to use a 'pre-wash'; just to see if it would improve things.
    IT DID NOT!
    It IS biZarrre that after 32 sheets....following 'instructions'/videos/datasheets as exactly as I possibly can....and....NOT ONE success??????
    Getting expensive!
    BUT the '445 is a great tool...I just have to master it...er...SOOOOON!
    Thanks again!

  9. #9

    Re: Negative negatives - using SP445 Tank

    Thanks for your response and tips!
    I agitate every 30 seconds..throught the process - go to whoa!
    NOT using 'powder', liquid concentrate; 9-1.(Ilfosol3)
    Tank FULL to 475-ish each time.

    This is my verrry first foray into 4x5, and developing, full stop.
    Have been following all 'instructions' to the letter, as far I can!
    Yet, after 32 sheets...not one success. BIZARRRRRE!?????
    Will increase the development time...and look closely at how I agitate etc...etc.
    Thanks again for your tips.
    To be continued......when I can out n get some more shots...BUT: Our temps here in Oz now are 100f...(Thu 23/1)!!

  10. #10

    Join Date
    Sep 2014
    Location
    North Dakota
    Posts
    867

    Re: Negative negatives - using SP445 Tank

    Try re-fixing to see if the mottling disappears.

    Next development cycle try a more dilute solution and a longer developing time. Use one sheet, or two with space between them in the tank.
    "My forumla for successful printing remains ordinary chemicals, an ordinary enlarger, music, a bottle of scotch - and stubbornness." W. Eugene Smith

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