Vignetting & Premier Pro ??

G

George D.

Well-known member
If we shoot video with a Canon 5D Mark II using a lens that causes a little vignetting, can this vignetting be cropped out in Adobe Premier Pro CS5 ?

I ask this because we have some specialty lenses designed for Super16mm & 35mm "cinema" film use, which will cause vignetting on a "full size" 35mm sensor. I realize that cropping this video would be like using a smaller portion of the sensor, but that is OK for our purposes as long as the vignetting can be cropped out in post.

Thanks.
 
or use photoshop to do a "lens correction" layer. you can take video straight into photoshop, and photoshop has the right tools.

edit: obiously, this depends on the strength of the vignette.

- Derrick
 
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George D. said:
If we shoot video with a Canon 5D Mark II using a lens that causes a little vignetting, can this vignetting be cropped out in Adobe Premier Pro CS5 ?

I ask this because we have some specialty lenses designed for Super16mm & 35mm "cinema" film use, which will cause vignetting on a "full size" 35mm sensor. I realize that cropping this video would be like using a smaller portion of the sensor, but that is OK for our purposes as long as the vignetting can be cropped out in post.

Thanks.
Click to expand...

As long as it hasn't got too dark you could correct for it in After Effects (or Photoshop, possibly). If you make an adjustment layer, brighten it up, and make a mask so only the vignette is being affected.
 
It depends on how severe/the type of vigentting you are experiencing. If you are are suffering from light fall-off at the corners then Dave & Derricks methods are a good option. If the vignetting is so severe that you can actually see the edge of the image circle in the frame then you'll need to crop - If your entire project is shot on the 5d, it might be a good idea to edit on a 720p timeline, but if it's only a few selected shots you need to crop, then just scale them up a little.
 
Why not just shoot on a 7D? You arent gaining anything in terms of shallow DOF by shooting on the 5D and you won't be able to utilize full 1080P either. You will still gain some low light capability though but if you shot 1080P and lowered the resolution to what you would be cropping the 5d's 1080P to then you will decrease the size of your noise and gain the low light capability back.
 
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