Developer exhaustion can be an issue with very dilute developers, like PMK, and 220. A 120 roll is the same film area as a 36 exp. roll of 35mm, but the 120 roll needs twice the volume of developer for adequate coverage in a daylight inversion tank, so insufficient developer is not likely to be a problem with 120. 220 uses the same film area and the same developer volume as two rolls of 35mm.
Last edited by David A. Goldfarb; 10-02-2007 at 02:43 PM. Click to view previous post history.
What equipment and developer did you use to develop the film?
the clip only held half a Qtip tips worth of film and was working at about 100 psi, i was barley able to slip the film in.
Using a Jobo tank and reel you can happily develop one 220 or two 120 rolls on one 2500 series reel.
This sounds a bit like insufficient fixing which leaves a foggy haze over the film. Try re-fixing the film in fresh fixer (you can do it in daylight - any light damage is already done if that is the problem) - even partial fixing protects against the light to some extent.
It comes out with a pale hazy backing
Good luck, Bob.
Actually, those "purple flame" marks sound like undeveloped area from bad winding.
WHAT YOU NEED TO DO:
Take that roll you'ave already done, and practice winding it, in the light, then looking away, until you can nail it in the dark
I am primarily a LF and ULF photographers who uses B&W sheet film. However, I also do a fair amount of work in medium format, especially on trips abroad where LF is not practical. The use of 220 film in this kind of circumstance is a major convenience factor, both for the time it saves in re-loading film, and in space saving as well. In fact, I value this convenience factor so much that have switched from B&W to color negative films because of the much wider choice of emulsions in 220 size in color. Far from a child like obsession, I consider the use of 220 film an important professional decision that enhances my ability to do good work.
I have worked as a commerial photographer for more years than I would like to admit. And at no time have I found the need for 220 film. I like the idea my 120 film has the protection of the paper backing for all frames. And when it comes to reloading, 120 it nothing. At a wedding one time in fact, a friend of mine came up to me at the end of the evening and asked where I learned to reload so quickly. He had actually timed me several times and said my best was 12 seconds. I never timed myself, but I also have never found reloading to interfer with my way of work no matter how fast I am working. Like cameras, strobes and all the other tools we photographers use, film in both type, brand and size is always a personal preference. There is no "perfect" one for all photographers.
Originally Posted by sanking
Last edited by PhotoHistorian; 10-03-2007 at 04:01 AM. Click to view previous post history.
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Originally Posted by PhotoHistorian
If we were all alike and had the same preferences for film and cameras and the same working habits the world would be a much simpler place. I estimate that my average changing time for medium format film is at least one full minute, and in some cases much longer. If I am shooting a street scene the action may have moved a couple of blocks by the time I get the film changed.
For me the difference between 16 and 8 shots (comparing 220 to 120 with 6X9 format) or 20 and 10 (comparing 220 to 120 with 6X7) is a major issue. I could get by with 120 if necessary, but 220 is just so much less hassle.
BTW, lots of professionals work with SLR equipment and often have several pre-loaded back or inserts. My own work in medium format is almost exclusively with rangefinder cameras like Mamiya 7 and Fuji GW690, which have to be re-loaded after each roll of film.
Last edited by sanking; 10-03-2007 at 08:45 AM. Click to view previous post history.
I found 220 to be more expencive to buy than 2 x 120 so baught 3 A12 backs and a host of HP5+, load 2 on a reel to develope and have no problems loading the backs. 120 is available so I use it, if 220 were as readily available I may use it but am more than happy with 12 on 120.
I wish all MF film was in 220, its vastly more convenient, easier/cheaper to develop, store, less wasteful packaging.
I shot Iggy Pop in concert last month on a hasselblad with tri-x 220, you're only allowed shoot during the first three songs and man I'd hate to be changing a roll while that man rocks
I like the option of both alternatives!
I hate leaving unexposed film in the camera (i.e. my Pentax 67II) or the backs of my Bronica ETRSi or Hassey CX2. I don't know, maybe it's irrational to the max, but I prefer to shoot out the roll whenever I am taking pics.
If I know I'm going to be taking a lot of pics with the Pentax, I want to have 220 in it. Changing rolls is a PIA and at that size - even a 220 will only give you 20 shots.
With the Bronica or Hassey, I have the choice of backs such that I can load as I think I'll need. But if I think I'm going to shoot more than a 120 roll, I'm better off to load a 220 back and add a 120 back as "back up"!
So yes, my ultimate wish would be to have all film choices in either 120 or 220 - and to the extent there are "gaps" in the choices out there - I don't think that requests for additional 220 options are "childish"!
Convenience is the main point.
I can't load an A-12 back in 12 seconds, more like 30. Fast enough for -any- event. Hard to go wrong with -six- film backs
Long live 220