 |
 | Home | Contact Us | FAQ | Search & Site Map | Link to Us |
 | Sign In | Join | Other 45 Sites in Network |
| PhotoKB HomeDiscussion Groups Digital Photography Digital PhotoDSLR CamerasZLR CamerasPoint & Shoot CamerasFilm Photography 35 mmLarge FormatMedium formatDarkroomFilm and LabsOther EquipmentPhoto Technique Nature PhotographyPeople PhotographyTechnique GeneralGeneral Photo Topics General TopicsAustralian PhotographyUK PhotographyDirectoryPhoto Clubs |
Photo Forum / Film Photography / Darkroom / November 2005Developing film pieces
I am using 35mm films in small boxes, used as pinhole cameras, but I have some trouble developing them. To do it I use a tank, and putting every piece inside the spiral require a long time, but that is not the biggest matter, the biggest one is that, sometimes, could happen that two pieces of film overlap and the image is lost. Anyone of you that has some experience with developing film pieces could help me? Thanks a lot. > I am using 35mm films in small boxes, used as pinhole cameras, but I > have some trouble developing them. To do it I use a tank, and putting [quoted text clipped - 3 lines] > has some experience with developing film pieces could help me? > Thanks a lot. You might want to try using 4 x 5 sheet film, it is much easier to make a pinhole camera with a larger piece of film. I use to shoot a fair bit of 4 x 5, I had a darkroom right by where I shot so for each shot I would dump the sheet into the tray of developer. At little hand agitation, a quick dump into stop bath and then fix and I had my negative. Well after a bit of rinsing. The point is it was very easy to do, no loading into a tank. You do need a very dark room to do this in however. The problem with 35mm and a pinhole camera is that by the time the hole is small enough to start to get a clear image diffraction blurs it out again, this is much less a problem with a larger piece of film Scott Scott Well, this is the point. When I make paper negatives, the image has a good definition, when I make 35mm ones they are all blured, nothing good. You say, then, that it is almost imposibble to obtain a detailed 35mm neg from pinhole? 4x5, never tried. What about the costs, are they expensive? Then, when you process them, you use a developer concentration like the one for paper? To enlarge it I need a specif enlarge or I need only a different film-holder? >> I am using 35mm films in small boxes, used as pinhole cameras, but I >> have some trouble developing them. To do it I use a tank, and putting [quoted text clipped - 20 lines] > >Scott > Well, this is the point. When I make paper negatives, the image has a > good definition, when I make 35mm ones they are all blured, nothing [quoted text clipped - 3 lines] > concentration like the one for paper? To enlarge it I need a specif > enlarge or I need only a different film-holder? The developer is just film developer, you are simply working with a lager piece of film. I was shoot sheet film a long time ago, around 1970, the sheet film was pretty cheap then and I don't believe it cost all that much now. Much more then a frame of 35mm but then just how many photos are you going to take with a PH camera. I have not looked by you might be able to get a pretty good deal on a used enlarger that could handle 4 x 5 sheet. But if these are from a PH camera a contact print is likely to be all you really need. You can also use 8 x 10 film and get a bigger contact print. Scott > I am using 35mm films in small boxes, used as pinhole cameras, but I > have some trouble developing them. To do it I use a tank, and putting [quoted text clipped - 3 lines] > has some experience with developing film pieces could help me? > Thanks a lot. If you want to use small pieces, cut them a little bigger an then clip them bottom and top with a stainless steel film clip like the Hewes clips. then you can fasten the clips onto a hanger and process them in a deep tank.  Signature"To announce that there must be no criticism of the President, or that we are to stand by the President, right or wrong, is not only unpatriotic and servile, but is morally treasonable to the American public."--Theodore Roosevelt, May 7, 1918 www.gregblankphoto(dot)com Trying to use 35mm film to make a pinhole camera is rather difficult. I strongly suggest using 4 x 5 film in a shoebox, properly sealed to keep out light.. > I am using 35mm films in small boxes, used as pinhole cameras, but I > have some trouble developing them. To do it I use a tank, and putting [quoted text clipped - 3 lines] > has some experience with developing film pieces could help me? > Thanks a lot. But, what is the real problem? It is about the hole? Have I too drill an very very small one? Or it is about the reaction the film, like the grain that doesn't make a good image? The problem is this: when I make pinhole with 35mm it is not very clear, instead, when I use paper image is detailed, even if the camera has moved a little. It is a matter of grain then? >Trying to use 35mm film to make a pinhole camera is rather difficult. I >strongly suggest using 4 x 5 film in a shoebox, properly sealed to keep [quoted text clipped - 7 lines] >> has some experience with developing film pieces could help me? >> Thanks a lot. > But, what is the real problem? It is about the hole? Have I too drill > an very very small one? Or it is about the reaction the film, like the > grain that doesn't make a good image? > The problem is this: when I make pinhole with 35mm it is not very > clear, instead, when I use paper image is detailed, even if the camera > has moved a little. It is a matter of grain then? It is a matter of diffraction, when the pinhole gets too small you get a lot of diffraction and this blurs the photo. As you go to smaller film you need a smaller pinhole but there is only so small you can go before running into diffraction. This is why digital pinhole cameras are a total waste of time, you need to use the biggest piece of film that you can. Scott The real problem is diffraction. You need the largest size film you can get. > But, what is the real problem? It is about the hole? Have I too drill > an very very small one? Or it is about the reaction the film, like the [quoted text clipped - 14 lines] > >> has some experience with developing film pieces could help me? > >> Thanks a lot. Some thoughts: Processing small bits of 35mm film. Tape the pieces to a 4x5 piece of glass or Plexiglas with waterproof tape (the bits the film makers use to attach film to take-up spools in film loads) or mini-lab splicing tape (I'll bet a lab would give you a roll end if you asked nice.) Then tray process. Resolution of enlarged images, you'll need a smaller pinhole for 35mm than for 4x5 film, you want as small as you can go without getting into interference range (look it up, I have a sinus headache this morning). Bigger film, many time I just taped a 4x5 Polaroid back to a pinhole camera and used type 665/105, then I got both a positive to check composition and a negative to enlarge. You could also use type 55 in the appropriate adapter if you have a source for cheap Polaroid (I did at one time). My favorite pinhole was one I made that mounted a 12 exposure roll of 126 Verichrome pan, now that was fun. Today you could take a cheap 35mm camera (thrift shop for $1) rip the lens off and use the body as a film transport. Signaturedarkroommike ---------- > I am using 35mm films in small boxes, used as pinhole cameras, but I > have some trouble developing them. To do it I use a tank, and putting [quoted text clipped - 3 lines] > has some experience with developing film pieces could help me? > Thanks a lot. Using 35mm film can present some unique headaches as been noted in other replies. Moving up to 120 or 220 roll film will allow a larger negative and pin hole. I have found that using medium format film allows me to get a working pin-hole image that can be enlarged some. Most of the time a contact print works the best for sharpness and detail. The larger the "negative" the larger the contact print. Draco Getting Even isn't good enough. |
Reply to this Message |
 Sign In
 Join
 My Latest Posts My Monitored Threads My Blog My Photo Gallery My Profile My Homepage Start New Thread Enable EMail Alerts Rate this Thread
|
©2009 Advenet LLC Privacy Policy - Terms of Use
This website includes both content owned or controlled by Advenet as well as content owned or controlled by third parties.