Page 38 of 39 FirstFirst ... 2836373839 LastLast
Results 371 to 380 of 389

Thread: Fomapan 100, 200 and 400

  1. #371

    Join Date
    Jun 2013
    Posts
    125

    Re: Fomapan 100, 200 and 400

    Quote Originally Posted by Deardorffuser View Post
    Foma200@800
    The "800" number does not tell the full story. What is the metering technique? Average? Incident? Spot; of what; placed on what zone?

  2. #372

    Join Date
    Dec 2017
    Location
    Europe, Switzerland
    Posts
    262

    Re: Fomapan 100, 200 and 400

    Hello, after spending a few hours in the darkroom, I would like to share an observation I made with Fomapan 100 in Kodak HC110-H 1+63.

    Normally, people say you have to expose and develop Fomapan 100 with an effective ISO of 50 or less. This works good with R09, 1+100. But I wanted to make some experiments.

    With HC110-H, I have got an S-shaped increase in density. This shows among other things the reciprocity characteristics of the film. The shadows get a too low density, while the lights get too dense.

    If one now further reduces the effective ISO, one gets into the range of 1/2s exposure for zone V, which means that for zone I, an adequate exposure of 4s would be necessary. For 4s, however, a compensated exposure time of, let's say, 21s would be needed due to the reciprocity ... So zone I will be 2 stops too dark?

    Consequently, the lower the effective ISO, which is supposed to compensate for this, the thinner the shadows will be.

    That's my consideration. Am I wrong? Is this the reason why HC110 is not recommended for Fomapan 100? Especially since the development time for HC110-H (1+63) is less than 10 minutes?

    What would be the consequences? On the one hand, one would have to aim for an effective ISO of 100, the nominal sensitivity, in order to avoid longer exposure times than 1/30s, so that the shadows don't turn out too thin. Therefore, one has to find a developer who really produces these shadow drawings. Ansel Adams recommended a moderate movement rhythm for the HC110G, so that the shadows still have density.

    On the other hand, this developer would have to hold back in the lights (or rather use up quickly). Maybe one should take care to use HC110-H or HC110-G only in smaller tanks with the minimum amount of concentrate needed for this dilution, i.e. 2ml per sheet 4x5. Accordingly, the development time will be long, which is probably about 20 minutes.

    Has anyone had any experience with this?

    Regards

  3. #373

    Join Date
    Jun 2014
    Posts
    1,774

    Re: Fomapan 100, 200 and 400

    Daniel, it sounds like you're in the process of finding out why Fomapan films are just not a very easy choice for low light situations. As you indicated, at some point you get stuck in an endless loop of increasing exposure and reducing development to combat the increasing contrast resulting from the film's reciprocity behavior.

    However, in practical terms, my experience is that exposures up to a few minutes (let's say 2-3 minutes) work quite OK at an effective EI of something like 25 and a compensating developer such as pyrocat. HC110 would give fairly similar results I suppose, but I haven't used it. No need to overthink things unnecessarily.

    Oh, and under no condition I have seen Fomapan 100 give optimal results when exposed at box speed. Not even in xtol.

  4. #374

    Join Date
    Dec 2017
    Location
    Europe, Switzerland
    Posts
    262

    Re: Fomapan 100, 200 and 400

    Maybe that's why the film is called "Arista Edu" in the USA - it's an educational film ...

  5. #375

    Re: Fomapan 100, 200 and 400

    4x5
    Foma 200@160




  6. #376

    Join Date
    Nov 2019
    Location
    New Jersey
    Posts
    167

    Re: Fomapan 100, 200 and 400

    Quote Originally Posted by Deardorffuser View Post
    4x5
    Foma 200@160



    Very nice, which developer?

  7. #377

    Re: Fomapan 100, 200 and 400

    Kodak hc110 1+47, 24C, 9:45min

  8. #378
    Peter De Smidt's Avatar
    Join Date
    Jan 2001
    Location
    Fond du Lac, WI, USA
    Posts
    7,594

    Re: Fomapan 100, 200 and 400

    Terrific work! What an interesting place.
    May tomorrow be a better day.

  9. #379

    Re: Fomapan 100, 200 and 400

    Thanks
    More photo to my instagram:
    www.instagram.com/dendorff_bw

  10. #380

    Re: Fomapan 100, 200 and 400

    Seconded. Lovely cool places
    “The secret of getting ahead is getting started.”
    ― Mark Twain

Similar Threads

  1. Fomapan 100
    By Richard Littlewood in forum Darkroom: Film, Processing & Printing
    Replies: 41
    Last Post: 27-Apr-2015, 04:37
  2. Fomapan 200
    By monkeymon in forum Darkroom: Film, Processing & Printing
    Replies: 2
    Last Post: 14-Dec-2010, 20:05
  3. Any preference between Fomapan 100 and Fomapan 200?
    By Gene McCluney in forum Darkroom: Film, Processing & Printing
    Replies: 12
    Last Post: 9-Aug-2007, 02:35
  4. Anyone using Fomapan 200?
    By David Honey in forum Cameras & Camera Accessories
    Replies: 10
    Last Post: 9-Dec-2005, 22:05
  5. fomapan 200 vs HP5+
    By Mateo_2867 in forum Darkroom: Film, Processing & Printing
    Replies: 1
    Last Post: 21-Sep-2005, 15:25

Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •