Mixing films with same development time?

[abruzzi]

if I have two films that have the same development time, is it ok to develop them in the same tank at the same time? I’m guessing so, but I don’t know if there would be other issues that could result. These aren’t really important rolls right now, but in the future I may want to do it on rolls I care more about.

 

[jimjm]

Should be fine.

 

[R.Gould]

No problem in my experiance, I have often developed different films with the same development time in the same tank, and never had a problem

 

[Pioneer]

Certainly you can develop two different types of film in the same developer. As long as the development time and temperature requirements are the same (or even close) it shouldn't be an issue. The only potential problem may be that one film requires a dramatically different agitation scheme than the other.

 

[Doremus Scudder]

Heck, I develop films with different developing times in the same batch. I tray process sheet film and often end up with a batch of six sheets that are different films and have three different developing times. All works just fine as long as I remember which sheets are which and get them in the developer in the right order I start with the sheets with the longest developing time and add the others during the course of the development.

Best.

Doremus

 

[abruzzi]

Thanks!

 

[MattKing]

Yes.
Assuming of course they are both standard black and white negative films designed for standard processes.
Some films (e.g. T-Max) require longer fixing times. Just fix for the longer time - it won't hurt the film that requires less time in the fixer.

 

[RalphLambrecht]

if I have two films that have the same development time, is it ok to develop them in the same tank at the same time? I’m guessing so, but I don’t know if there would be other issues that could result. These aren’t really important rolls right now, but in the future I may want to do it on rolls I care more about.

that's no problem;You just need to make sure that you have sufficient active solution or you risk underdevelopment. Ian once quoted a min amount per each film here in a former thread.