The film was then developed using a developer containing phenidone and hydroquinone, which formed three superimposed negative images, one for each primary color. After the first developer was washed out, the film underwent re-exposure and redevelopment.
-MQ/PQ developers are developing solutions containing the reducing agents metol and hydroquinone or phenidone and hydroquinone.
-M-synch is a flash setting or socket which synchronizes the firing of the shutter with the peak light output of a flash bulb.
TMY is admittedly a difficult film to work with. I prefer to use Ilford Delta 400 film for this reason. My best advice is to use a highly dilute, non-phenidone developer to help with the highlight problems.
The latent image acts as a catalyst encouraging development to take place faster in exposed areas. Development takes place in both exposed and unexposed areas of the film just at different rates.
Developing agents: Metol, Phenidone, Hydroquinone.