Need help to identfiy whre the problem occurred

[Jim Noel]

That may be the problem ,its because i just checked the amount of developer i i use it to develop it does not cover the whole film in the tank,so i will do another exposure and i will add more the developer until the film is covered with developer and ill post the result later.

That is the answer to your problem. By the way, rotation as on a motor base, will also solve the problem.

[Leigh]

Yeah, if you must agitate (invert) by hand you must fully cover the film.

- Leigh

[Cupcake]

That's standard for rotary development, and one of its advantages.

To work properly, the tank cannot be stationary for any amount of time. It must rotate continuously.

Here's a crop of the Jobo datasheet showing 270ml of solution required for up to 6 4x5 sheets at a time. If your particular developer requires more volume per sheet, you use more or process fewer sheets.

The Solution circle in the title bar shows the liquid level in the tank when stationary. The grey shading was hard to see so I put a red line above the liquid level in the drawing. Note how low it is.



- Leigh

Thanks again for the help Leigh ,have a great day !