Luma Blending Effect: Adobe Premier Pro

The Luma Blending Effect is a more advanced version of a concept we discussed briefly in class. Professor Campbell showed us how to have two different videos playing simultaneously next to each other on the screen. We also learned how to lowering the clarity of an image/ clip. However, this effect takes it to the next level. My project deals with a lot of inanimate objects. I have been trying to find a nice blend of my two subjects (Kayla and shoes), but I have had trouble finding a balance. For this problem, the Luma Blending Effect can prove to be very beneficial.

I found this tutorial on YouTube that walks you through the way to perfect this technique. It starts focusing on this method a little after the 5-minute mark. However, to save you some time (and so I could get more practice with this skill) I outlined the steps of this technique.

  1. Drag a luma matte jpg to the editing screen
  2. Extend the length so it corresponds with desired clip
  3. Go to select control panel –> Motion tab
  4. Adjust the scale until it fills the entire screen
  5. Do a marque select on your clips in track 2
  6. Go to the effects browser and type “track matte”
  7. Select the track matte key and drag it to your selection
  8. Select the first clip in track 2
  9. Control panel –> select Track Matte Key
  10. Change the matte from none to video 3
  11. Change the composite from matte alpha to mate luma


I think this is a very useful thing to learn because it can help you incorporate different shots into the frame. In movies, you have probably seen this most when it is highlighting portions of clips over a span of time. It has the ability to show multiple meaningful scenes within a matter of seconds. In my case, it will be more of a highlighting montage because I plan on mixing videos and pictures. I think it will be able to help make the pictures more captivating by adding an element of motion to them.

– TS

Increasing/Decreasing the speed of a clip

There is a lot of running in my video portrait, and to make it more fun, I wanted to know how to speed up and slow down video. I didn’t notice this effect in any of the other tutorials, so I decided to figure out how to do it myself. It is actually a very simple process. I will explain the process using screenshots. If you have any questions about how to use the effect, please feel free to ask me in class tomorrow.

1) Step one is to choose the clip that you want to speed up or slow down. You can select the clip by dragging it to your timeline and then highlighting it. You will know the correct clip is highlighted when it turns a gray color (like the clip highlighted in the picture below).


2) Step two is to click the “Clip” tab in the top bar. Next, select “Speed/Duration”. As pictured below.


3) The next box that appears will hep you speed up or slow down your clip. The box should look like the one in the picture below.


4) Keeping the speed at 100% will maintain the actual speed of the clip. If you would like to make your clip faster, increase the percent. Your clip will be 3 times as fast if you choose 300%. If you would like to slow down your clip, decrease the percent. Your clip was be half as fast if you decrease the percentage to 50%.

5) The audio pitch will automatically become higher if you speed up, and slower if you slow the clip down. To stop this from happening, select the “Maintain Audio Pitch” box.

6) If you reverse the speed, then the clip will play backwards.

Hope this helps!


Panning Across Photos in Adobe Premier Pro

One thing I wanted to do in my video portrait which was not explained in class or tutorials was how to pan across a still image while a voiceover from a film clip plays in the background. Some quick Googling and a few YouTube tutorials were very helpful; however, I still needed to translate this information into a method that would be useful in my specific video (using Adobe Premiere Version 7.0). This is what I came up with:

1. Drag and drop the video you want for the voiceover into the sequence (Video 1).

2. Drag and drop the photo you want into Video 2. It will overlay over Video 1. Adjust the size in the timeline so that the photo is shown for however long you want it to be.

3. Select the photo in the timeline. In the Source window, open up the Effect Controls by scrolling to the right and clicking the appropriately labeled tab. In the Effect Controls window, there will be a miniature timeline which corresponds to the actual timeline at the bottom of the screen. Make sure the play-head is positioned at the very “beginning” of the photo. In the Effect Controls, under Video Effects >> Motion >> Position, click on the toggle (little icon that looks like a stopwatch) in front of the word “Position.” Click on the diamond  to add a keyframe where the play-head is positioned. (If you wanted to start with a normal-sized photo and then zoom in or out, you would do the same thing where it says “Scale.” But I didn’t do that since I wanted the photo to be zoomed in the entire time.)


4. Under “Transform,” increase the scale to its maximum allowable height and width. Then, under “Motion,” increase the scale to its maximum allowable size. This will ensure that the photo is completely zoomed in for the entire duration of the clip, as opposed to showing the normal sized photo first and then zooming in.

5. To pan across, you will need to use keyframes. For one steady motion which lasts for the entirety of the photo being displayed, I found it helpful to play the video while adding a keyframe every few seconds, making sure that the keyframes were evenly spaced apart. On each keyframe, the image will move to a new location. So it is important that the keyframes are evenly spaced, so that the image pans across at a steady pace throughout its display on-screen.

6. Once you have added your keyframes, scrub the play-head back to the “beginning” of the photo (your screen should look like the above image, with the play-head on the very first keyframe). Click on “Motion” so that it is highlighted. A square with a bullseye in the center should appear on the video. Click and drag the image to where you want to begin panning.


7. Then, skip to the next keyframe. Steadily drag the photo in the window in the direction you want to pan. Repeat with each successive keyframe. It’s important that you drag the photo the same amount of distance with each keyframe, again so that the “camera” will pan across the photo at a steady rate. You can pan in any direction based on what aspects of the photo you want to highlight, but here I just panned across the row of ducks in a straight line.

8. When you reach the last keyframe in that clip, the position of the photo should be where you want to end before cutting back to whatever video clip you wanted to show next or were using as the voiceover. That’s it! It seems pretty complicated at first, but it’s actually pretty easy once you try it. The main thing is to get comfortable with how to use keyframes.