What happens if I use colour negatives?

Discussion in 'The Darkroom' started by ahelg, Jan 9, 2007.

  1. ahelg

    ahelg TPF Noob!

    Joined:
    Sep 12, 2004
    Messages:
    338
    Likes Received:
    0
    Location:
    Durham, UK
    I was just wondering what would happen if I put a colour negative in an enlarger and print it onto black and white paper. Would I get an ok black and white print or would it come out bad.
     
  2. ladyphotog

    ladyphotog TPF Noob!

    Joined:
    Oct 4, 2006
    Messages:
    215
    Likes Received:
    0
    Location:
    Georgia
    Can others edit my Photos:
    Photos OK to edit
    It would be fine however you need to use higher contrast because of the color base. It usually takes a longer exposure time as well.
     
  3. ksmattfish

    ksmattfish Now 100% DC - not as cool as I once was, but still

    Joined:
    Aug 25, 2003
    Messages:
    7,021
    Likes Received:
    34
    Location:
    Lawrence, KS
    Can others edit my Photos:
    Photos NOT OK to edit
    I've found that the grain seems a lot more pronounced in BW than color. When I shot weddings with film I'd occasionally get a client that wanted a color shot printed BW. It can be done if you have to, but the results aren't always as nice as just starting with BW film.
     
  4. ahelg

    ahelg TPF Noob!

    Joined:
    Sep 12, 2004
    Messages:
    338
    Likes Received:
    0
    Location:
    Durham, UK
    Well that's good to know. I have some shoots back home in Norway which I took in Spain which I wanted to try in B&W.
     
  5. ladyphotog

    ladyphotog TPF Noob!

    Joined:
    Oct 4, 2006
    Messages:
    215
    Likes Received:
    0
    Location:
    Georgia
    Can others edit my Photos:
    Photos OK to edit
    To help with the grain you need to stop down your enlarger lens. You should get a nice print if you use some nice paper. It never failed every wedding I shot the bride wanted a color and b&w print of the same image. Your developer can help with the grain and contrast issue as well. Unfortunately you really have to experiment, it depends on the color film, the b&w paper and the developer you are using. You have to find the right combination.
     
  6. Philip Weir

    Philip Weir TPF Noob!

    Joined:
    Apr 29, 2006
    Messages:
    506
    Likes Received:
    0
    Location:
    Sydney, Australia. The land of peace and sunshine.
    If I may put in my two-pennies worth. To hold the tones correctly, you need to use Kodak's "Panalure" paper, but it's a bit fiddly using it, as you have to develop in complete darkness and use the time/temperature method. It's a panchromatic film rather than normal B&W paper being orthochromatic. With respect, "ladyphotog" how can stopping the lens down have any effect on the grain ? Philip.
    www.philipweirphotography.com
     
  7. Christie Photo

    Christie Photo No longer a newbie, moving up!

    Joined:
    Jan 7, 2005
    Messages:
    7,006
    Likes Received:
    67
    Location:
    Kankakee, IL
    I agree.... but, I understand that Kodak ceased production of all their black and white papers. Is there an Ilford equivalent? Seems I used a safe-light with Panalure... was it a Kodak no. 10? It's a rather dense filter... very dark.

    I too wondered about the "stopping down" effort to reduce grain. Can you tell us some more about your thoughts on this?

    Pete
     
  8. queen_of_scum

    queen_of_scum TPF Noob!

    Joined:
    Sep 6, 2006
    Messages:
    28
    Likes Received:
    0
    Location:
    Glasgow/Aberdeen
    Here are some prints I've made from colour negs on ordinary multi-grade b/w paper :)

    [​IMG]
     
  9. ksmattfish

    ksmattfish Now 100% DC - not as cool as I once was, but still

    Joined:
    Aug 25, 2003
    Messages:
    7,021
    Likes Received:
    34
    Location:
    Lawrence, KS
    Can others edit my Photos:
    Photos NOT OK to edit
    If you are using multi-grade contrast paper variations in the subject color can affect contrast too, making some color negs easier to print than others.

    When I said the grain seemed more pronounced, I didn't mean there actually was more or larger grain. I just found the grain less noticable in a color print than in the BW prints.
     
  10. Philip Weir

    Philip Weir TPF Noob!

    Joined:
    Apr 29, 2006
    Messages:
    506
    Likes Received:
    0
    Location:
    Sydney, Australia. The land of peace and sunshine.
    You are exactly right, that's why I always hated doing prints from colour negs onto b&w paper.:lmao:
     
  11. ksmattfish

    ksmattfish Now 100% DC - not as cool as I once was, but still

    Joined:
    Aug 25, 2003
    Messages:
    7,021
    Likes Received:
    34
    Location:
    Lawrence, KS
    Can others edit my Photos:
    Photos NOT OK to edit
    Me too. I disliked doing it, and the results disappointed me so much (although the clients were happy with them) I finally began telling clients that it wasn't possible for me to make BW gelatin silver prints from color negs. If they wanted color and BW we were just going to have to schedule enough time to take some of each.
     
  12. ladyphotog

    ladyphotog TPF Noob!

    Joined:
    Oct 4, 2006
    Messages:
    215
    Likes Received:
    0
    Location:
    Georgia
    Can others edit my Photos:
    Photos OK to edit
    Well, usually when you are printing color negs on b&w paper you have a long exposure time. Therefore, most will open up the lens to reduce that time. The appearance of grain is more pronounced with the lens wide open than at F-8, which is usually where the lens is at it's optimum. But it is worth it in the final print to stop down, preferably to F-8 and expose for whatever time is needed rather than open up and have a shorter exposure time.
     

Share This Page

Search tags for this page
can use print color film in black and white darkroom
,

color negatives in black and white enlarger

,

how to expose a color negative on a enlarger to black and white paper

,
printing color negatives on black and white paper
,
what does it mean color negative in film
,
what happens if i use a color negative in b/w paper
,
what happens if you put color negatives
,
what happens to colur paper black and white negatives
,
what happens when you develop color negative with black and white procedure
,

what happens when you print color negatives on black and white paper