Beating a dead horse?

[Bobby Ironsights]

Pushing film is merely underexposing and overdeveloping.

 

[Alexr25]

The developer are you using will have an effect on how successfully you can push a film.
In the dim distant past when I shot film my standard film/developer combination was TriX film and Ilford Mirophen developer. This gave me quite good results when pushed a stop or two.
This data sheet has some good info on push processing of film.

 

[gsgary]

What developer are you using ?

 

[timor]

Pushing film is merely underexposing and overdeveloping.

This is little more complicated than that.
Let's call the thing a process of intensification instead of "push". This may better convey the idea of it cause it is exactly what is happening (however nobody knows why ). Prolonged contact of silver halide crystals with reducing (developing) agents provoke much more of infectious development causing increase in density of those grains of silver halide which contain latent image than in those, which don't.
This whole process is used as a bases of zone system, when the dynamic range of the subject is too much for the film to handle, a process, which effectively is moving all the zones up (push ?) but is called N+ development like N+1, N+2, the number (usually we have to establish it empirically just for our own conditions) says how many zones up we go and that using standard rating of the film (or normal, proper for the light conditions exposure). This is not without penalties in increased contrast and blocking of the highlights and this is important, knowing, how film reacts to prolonged development.
To OP: Neopan 400 is maybe not the best film for pushing. It is a tabular emulsion film and as such has tendency to block highlights easy which will cause substantial loss of details. Better go with Alex advice. If he/she (?) (sorry...) has some experience with it I would take advantage of it. Maybe microphen is good for controlling the contrast in "push".
Good luck.

 

[The_Traveler]

May I point out that the last entry in this thread before this last Tuesday was in 2005 and the OP has probably solved his problem already.

 

[timor]

May I point out that the last entry in this thread before this last Tuesday was in 2005 and the OP has probably solved his problem already.

Or went to digital...

 

[gsgary]

May I point out that the last entry in this thread before this last Tuesday was in 2005 and the OP has probably solved his problem already.

And your point is [emoji3]

 

[timor]

May I point out that the last entry in this thread before this last Tuesday was in 2005 and the OP has probably solved his problem already.

And your point is [emoji3]

That we are probably "beating a dead dead horse". No one is listening... OP is gone.
I wonder where Bobby was digging. 8 years, that's ancient history in terms of internet.