When you launch Premiere, you are presented with
a menu of Sequence preset types to choose from.
You can skip this step by hitting Cancel, import (or capture) your media,
then do this:
Or, right-click a media file and select 'New Sequence From Clip".
How do I choose the right sequence settings?
Not HDV, there ought to be a "DSLR" folder. If you don't see a long list of options, you could have a faulty install that did not put everything in.
Once you choose DSLR, there are sub-options to match the frame size and frame rate as well. The truth is, you do NOT have to use a "DSLR" preset necessarily, you could also use AVHCD or something else as long as the specs match.
Also, on bottom right of Project Bin, there is a button for New Item - drag and drop a clip onto that icon to create a Sequence with the correct parameters to match your source footage.
Safe Harbor Computers
Can I use AVCHD to import clip from 5D mk3 and also from GoPro 3 Black Edition?
You do not use a Sequence preset from this menu to import media.
Your initial choice of a Sequence preset from this menu
will have no bearing or affect on the import of your media files.
You can select anything (or nothing by hitting 'Cancel'), then import
(or capture) your media, and create a properly configured Sequence
that matches your media type by doing what is indicated in post #1.
If your two different source types are not the same frame size
and frame rate, you should create a Sequence using the media type
that will constitute the majority of the material in the Timeline.