Cross Dissolve and Dip to Black transitions

I do fade to black using opacity keyframes manually.

eg. night interior, talent ready for bed and sleep. they say goodnight to each other and it fades to black. Next clip is same room, morning light coming in windows, talent waking up.

cross dissolve ( at some point midway you can see both clips superimposed on each other as it transitions to the second clip ) I also do manually with opacity keyframes with video stacked. I don't like relying on auto stuff using frames beyond my cuts to help make transitions and usually have hard cuts ( rarely have anything beyond what I see on screen in my clips, they are all hard cuts re: the frames I want to use.

eg. scene at airport where someone waves goodbye to friend on airplane, cross dissolve to

DIFFERENT TIME AND PLACE.

🙂

They are not the same.

If you set your background to Transparancy Grid you will see the difference between a cross dissolve and dip to black.

On a side note Dip to black is designed to act as a double sided transition.

Does not work all that well as a single sided transition without tweaking.

there are lots of ways to do the same thing in premiere.  I sometimes move the incoming clip to a higher video track and apply dissolves to the outgoing clip and the incoming clip.  I sometimes use the dip to black (but rarely for some reason or other), I occasionally keyframe the opacity of each clip and sometimes I put a piece of black of black above the transition and add a dissolve to the beginning and end of the piece of black.  The choice is yours.  they all usually have the same result.    

Can you explain exactly what's going on when it cannot be applied at all?