Switch to English Language Passer en langue française Omschakelen naar Nederlandse Taal Wechseln Sie zu deutschen Sprache Passa alla lingua italiana
Members: 71,523   Posts: 1,572,312   Online: 841
      
Results 1 to 10 of 10
  1. #1
    pgram's Avatar
    Join Date
    Dec 2012
    Location
    loiano, italy
    Shooter
    Medium Format
    Posts
    12
    Images
    26

    Need advice on HC-110, reduced tonal range

    Hi all,
    I have been trying HC-110 for the first time.
    I had a roll of HP-5, exposed at 400.
    i developed it in HC-110 dilution H (i wanted longer time) on a smal 300cc stanless steel tank.
    the temperature was about 22 c° (cannot go lower) and time was 9 minutes, normal agitation.
    the negatives look not so bad, but the tonal range is very compressed.
    I "scanned" some with my D600, using a bellow and 50mm lens, and a TTL flash.
    the histogram is centered, but tightly compressed.
    What is my mistake? do i have to expose for less ISO, or change developing time?
    i'm attaching those scans for your inspection...
    thanks,
    paolo
    Click image for larger version. 

Name:	test hp5 hc-110-2.jpg 
Views:	30 
Size:	551.0 KB 
ID:	71471Click image for larger version. 

Name:	test hp5 hc-110-3.jpg 
Views:	46 
Size:	562.4 KB 
ID:	71472Click image for larger version. 

Name:	test hp5 hc-110-4.jpg 
Views:	46 
Size:	558.9 KB 
ID:	71473Click image for larger version. 

Name:	test hp5 hc-110.jpg 
Views:	35 
Size:	570.7 KB 
ID:	71474
    Paolo from Italy

  2. #2
    Mainecoonmaniac's Avatar
    Join Date
    Dec 2009
    Shooter
    Multi Format
    Posts
    3,120
    Images
    6
    It looks under developed to me. At asa 400, try dilution B for 5 minutes to start.
    "Photography, like surfing, is an infinite process, a constantly evolving exploration of life."
    Aaron Chang

  3. #3
    clayne's Avatar
    Join Date
    Sep 2008
    Location
    San Francisco, CA | Kuching, MY | Jakarta, ID
    Shooter
    Multi Format
    Posts
    2,838
    Images
    57
    Yeah, just seems underdeveloped. You'll probably be able to easily work with these negs.
    Stop worrying about grain, resolution, sharpness, and everything else that doesn't have a damn thing to do with substance.

    http://www.flickr.com/kediwah

  4. #4

    Join Date
    Jul 2007
    Location
    Massachusetts, USA
    Shooter
    Multi Format
    Posts
    431
    You need at least 6ml of the syrup (based on US packaging, which at least used to and may still differ from Europe's) per roll. Dilution H is very dilute, containing only ~4.7ml of syrup in 300ml of mix, so you probably exhausted the developer, resulting in underdevelopment. Either use more solution, or a different dilution like B. The trouble with A and B is that developing times can be very short, so if your tank is limited to 300ml you might want to use D or E, especially in warm conditions.

    HC-110 is a nice developer, you should be able to get it to work. Google "HC-110 Covington" and you will find a very comprehensive resource page. It is also available in German translation if that is easier for you.

  5. #5

    Join Date
    Feb 2008
    Shooter
    35mm
    Posts
    223
    the tonal range is very compressed
    Try dilution B. I found some excessive compensating effect using dilution H.
    the temperature was about 22 c° (cannot go lower)
    Use some ice cubes in the water used to prepare the developer. Aim for 18°C. Measure temperature in developing tank when 2-3 min into the developement (heat exhange with developing tank), and adjust actual time according to that temperature.

  6. #6

    Join Date
    Aug 2011
    Location
    Braunschweig, DE
    Shooter
    Multi Format
    Posts
    13
    I've been happiest with dilution E (which is roughly 1:50 from syrup). It avoids the developer exhaustion issues mentioned above, but still gives reasonable processing times (7-8 minutes @ 20C). 9 minutes in dil. E at 22C is probably too much, but I suggest trying one roll with those parameters anyway, so that you only change one variable at a time. You can then shorten the time or lower the temperature until you're happy.

  7. #7
    pgram's Avatar
    Join Date
    Dec 2012
    Location
    loiano, italy
    Shooter
    Medium Format
    Posts
    12
    Images
    26
    I found that the first roll was also underexposed, due to a defective selenium cell in my retina IIIc...
    tried another roll in my Nikon F4, and the results are better; i did it before your latest posts; it went better, but still a little "muddy", so my next try will be with dilution D or E in order to stay away from developer exaustion...

    i'll post my next results... thanks to all!

    Paolo
    Paolo from Italy

  8. #8
    Richard Sintchak (rich815)'s Avatar
    Join Date
    Jan 2003
    Location
    San Francisco area (Albany, California)
    Shooter
    Multi Format
    Posts
    3,152
    Images
    1
    Quote Originally Posted by bernard_L View Post
    Try dilution B. I found some excessive compensating effect using dilution H.
    Excessive? Not in my experience, nor most of what I read in others using dilution H. I use dilution H almost exclusively. Staying consistent roll to roll at short B times is more an issue than the mild if any compensating effects from H. What agitation regime do you follow?
    -----------------------

    "Well, my photos are actually much better than they look..."

    Richard S.
    Albany, CA (San Francisco bay area)

    My Flickr River of photographs
    http://flickriver.com/photos/rich815...r-interesting/

    My Photography Website
    http://www.lightshadowandtone.com

  9. #9

    Join Date
    Nov 2011
    Shooter
    35mm RF
    Posts
    72
    I don't believe it is because of exhausted developer. My experience is that 3ml US syrup probably is the minimal since I've used 7.5ml to develop 2 rolls for hundreds of rolls with no problem. I think it probably is due to the scene and the exposure.


    Quote Originally Posted by Steve Goldstein View Post
    You need at least 6ml of the syrup (based on US packaging, which at least used to and may still differ from Europe's) per roll. Dilution H is very dilute, containing only ~4.7ml of syrup in 300ml of mix, so you probably exhausted the developer, resulting in underdevelopment. Either use more solution, or a different dilution like B. The trouble with A and B is that developing times can be very short, so if your tank is limited to 300ml you might want to use D or E, especially in warm conditions.

    HC-110 is a nice developer, you should be able to get it to work. Google "HC-110 Covington" and you will find a very comprehensive resource page. It is also available in German translation if that is easier for you.

  10. #10

    Join Date
    Jul 2006
    Location
    Ohio
    Shooter
    Medium Format
    Posts
    108
    I have used Dil H. for the last ten years and have not noticed any compensating effects just longer development times. Which for me meant less room for error and more consistency roll to roll. I don't use HP5 but have read it may need a little more dev. time to boost contrast. Looks like you need to do some more testing to get your work flow figured out with your setup. There are several threads in this forum explaining how to go about testing.



 

APUG PARTNERS EQUALLY FUNDING OUR COMMUNITY:



Contact Us  |  Support Us!  |  Advertise  |  Site Terms  |  Archive  —   Search  |  Mobile Device Access  |  RSS  |  Facebook  |  Linkedin