I never used a densitomiter but TMZ made wonderful images in very dark situations that I could NEVER do with Tr-x or Tmax400.
I could get it to "act" like 3200 NO problem... not sure Ansel Adams would agree but I made images I couldn't make any other way.
How old are those films you observed elevated fog?
Originally Posted by ic-racer
What are the expiration dates of TMZ you tried, and which developer do you use?
Originally Posted by David Lyga
I DID find TMZ to degrade FAST outside of cold-storage... I thought the film looked "flat" or fogged if it sat in my bag for 6 months or more... of course hot car! (Even in the winter a car can get pretty warm!)
I don't know much about "true Iso Values". I shoot the film at 3200, I develop and I print. And I really absolutely love the look this film gives.
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i have never had trouble with tmz, even very out of date tmz.
about a year ago i used it ( at 3200 ) to document a roasting of sumatra
and then brewing of the same coffee that i typically use as my film developer.
the tmz that i used was stored on a shelf or drawer for 15 years or so
here are the results:
back in the 80s and early 90s when i used it often i would shoot it at 3200
and it was fresh, and i'd process it in a conventional developer ( tmax rs, xtol, sprint )
and never had trouble either ...
all in all, i have learned over the years to have low expectations
so sometimes i am pleasantly surprised.
sorry for your troubles !
The results you get with a film like TMZ are affected by many factors. You can always get an increased contrast index by extending developing time. If you extend it too long you will get acceptable highlights but still poor shadow detail. If the light is low enough that you must expose TMZ at a higher speed than 800, that's what you have to do. The developer you use makes an important difference. A developer like Microphen, which is based on phenidone, will give you a little more speed than a developer like D-76, which is based on metol. Exposure is, of course, also very important. Someone who shoots Tri-X and insists it should be rated at 200 rather than 400 may be doing some of these things: using a camera with a meter which is off by one stop, metering improperly off of a very light colored subject, using a thermometer which is slightly off, underdeveloping. If you are using undiluted Microdol-X or Perceptol then you would need to rate Tri-X at 200. In most other developers, 400 wold be fine. By far the nost common problem with "rating" a film is underexposure when metering off of a subject which is lighter than 18% gray. Using a spot meter will not solve the problem. You have to understand what you are metering off of. In light which is not too high or low in contrast if you meter off of a white subject, you need to add two stops of exposure. This doesn't mean you are rating TriX at 100. It means that if you were metering off of an 18% gray card, it would show two stops of extra exposure compared with the reading taken from the white subject.
Roll film shooting is not like digital shooting. You can't simply dial up the ISO for various shots and not for others. That's why a faster film can be useful. Fuji's Neopan 1600 is already out of production. TMZ may or may not still be in production. I do not have a problem getting 800 from TMZ. It must be handled very carefully, especially during loading, to avoid fogging but it can be done.
I just want to clarify that I often shoot TMZ at 1600 or 3200. It's a wonderful film up there too.
from what i have heard, there is "lore" "urban legend" that suggests
it is really "tmz1600", but "tmz3200" sounded better and was a cooler name, so
they used that as the name, and the "real" iso is 1600 ...
i have a few more expired rolls that i look forward to shooting !
I'm not sure why you quote that as 'lore' or 'urban legend'. Kodak very clearly states in F-4016, pg 19:
Originally Posted by jnanian
The nominal speed is EI 1000 when the film is processed in KODAK PROFESSIONAL T-MAX Developer or KODAK PROFESSIONAL T-MAX RS Developer and Replenisher, or EI 800 when it is processed in other Kodak black-and-white developers. It was determined in a manner published in ISO standards. For ease in calculating exposure and for consistency with the commonly used scale of film-speed numbers, the nominal speed has been rounded to EI 800.
Because of its great latitude, you can expose this film at EI 1600 and yield negatives of high quality. There will be no change in the grain of the final print, but there may be a slight loss of shadow detail. When you need a higher speed, you can expose this film at EI 3200 or 6400. At these speeds, there will be a slight increase in contrast and graininess with additional loss of shadow detail.