You don't say which version of the program you're using but, if you're using version 11 or later, the program will automatically set up your project specs based on the first clip you add to your timeline.
You should easily be able to mix these two formats in the same project (assuming one or the other is not an MOV, which can have its own challenges). Though you'll ultimately be better off changing your camcorder settings so that the videos are shooting at the same resolution and frame rate. Doing so will certainly save you lots of rendering time later!
I would agree that you should be able to mix the 1080p50 and 1080p25 in the same PAL project. But, I would like to contribute the following additional information.
You should be able to accept or set for project preset
since the major factors are same frame size and progressive video and the project preset is directing the program to give the 1920 x 1080 space in the Edit area monitor for editing. Unless you are doing frame by frame by frame editing, that is a prime focus.
Longer Explanation to avoid ending up with a 1080i25 project preset instead of 1080p50 or 1080p25 one
Premiere Elements 11, 12, and 13 are designed to do an automatic set of the project preset based on its analysis of the first drag to the Timeline properties. If it cannot do that, it does not give you the closest fit, but rather its default which is 1080i25 (in your PAL setup). So, if this is your initial use of your video formats in Premiere Elements, it might be a good idea to see what the project preset has been set for you in order to determine if it agrees with the 1080p50 (or 1080p25)..whichever you dragged to the Timeline first. The program has done it correctly if you see the following in Edit Menu/Project Settings/General.
If your 1080p50 is the first drag to the Timeline
If your 1080p25 is the first drag to the Timeline
If the program went to its default for either, then you want to set the project preset manually for either of the two choices using
the File Menu/New/Project route, and then import your source files.
Just in case mention, true if you have a match between your video properties and the project preset, initially you will not need Timeline rendering
at the moment of import. But Timeline rendering will be needed after each of your edits to that video if you want the best possible preview of
your edited content, that goes for the 1080p50 and 1080p25 on that Timeline.
thank you for the answer
I use premiere 13
i want to share it on usb do i use avchd 1080p 50 or 1080p 25 do i have a big difference quality
thank you thank you
by starting a new project when you change the settings there is a possibility to force the settings to accept all your changes do i have to do it ????
Thank you for the follow up.
With regard to your post 4 addressed to me....
If you find that the project is consistently setting the project preset correctly, I would go with letting it do the job. But, do that only after you made sure that it was giving you what you wanted (1080p50 or 1080p25 and not 1080i25).
If it not doing it right for some reason and you are setting the project preset manually, then I would be sure to have a check mark next to "Force Selected Project Setting on This Project" before continuing to the program's workspace to add your source file(s). Whether or not "have to" for that check mark after the project preset change in "Change Settings", I have never established that. And, I have placed the check mark since it seemed a reasonable thing to do under the circumstances, and it produced consistent wanted results.
thank you again for the goed advice
merci 1000 FOIS