I'll check but for now, yes, 200T will be fine no matter how the Elmo reads it. It will be seen as either ASA 160 or ASA 100, which is 1/3 or 1 stop overexposed, depending.
Tri-X will be fine either way if you cut a notch in the cartridge for the filter pin. This will disable the SMPTE super 8 protocol and cause any camera to read Tri-X at ASA 160, if you are in doubt about how the camera responds to all the pins and notches.
The only exception will be those that read up to ASA 250 and beyond, in which case Tri-X will be metered at this speed if notched. But cameras that go this high will in all cases
follow the SMPTE protocol, so all film cartridges can be left alone and not modified.
Cutting a filter notch won't work for the new Plus-X, because then it will be read at ASA 160, which is underexposed by 2/3 stop. This will be true for any camera, too, that reads this high. So never cut a filter notch in a Plus-X cartridge nowadays if you have a camera that was made after about 1969 or so. If it can read up to ASA 160, you'll get an underexposure error.
Edited by Jim Carlile, 21 May 2009 - 03:45 AM.