Hi
Sorry to to add my tupennyworth.. 
.....I have to disagree... 
c_major writes...
"I've done the test and didn't find any 30fps restriction, preview and export are both in 60fps.
But when you click "Next/Previous Frame" button on the preview panel, the cursor always step by 40ms. This's a known bug to be fixed."
If you load a 60fps clip of a moving object and then step through it frame by frame using the "next frame" button, the video display does indeed, move on an image every step and the time shown under the sequence preview pane does increment for each image by .04 seconds
This is therefore indicating the clip is being shown at 25 fps even though the acutual clip is 60 fps. At 60fps the increment should equate to 0.016 seconds
This may or may not be a bug as c-major suggests but..
"If you use the mouse drag the cursor you'll able to see every actual frame."
This is not the case IMHO.
Although you can zoom in and manually move the red cursor line an increment of less 0.04 and which is shown under the preview image, the image does not increment until the 0.04 seconds interval has elapsed. You don't see any other images between these points.
At 60fps one would expect to see the image change every 0.016 seconds since..
1) The subject of the clip is a moving object like a car which should show changes in position every 0.016 seconds)
2) You can drag the cursor line to these positions
2) Your clip is shot at 60fps and should show changes at this frequency.
This does not happen and indicates that the preview IS 25 fps. and you cannot, in fact, "see" any frames between these increments.
What then happens if you export this at the original 60fps setting? Are frames duplicated or are the ones you can't see during editing still there?
Nat
