diff --git a/slides/ws-video/slides.md b/slides/ws-video/slides.md
index f329815408c4eab366b27f698eeb35d9041d6497..feb91ac5a4e0308c14198c57fb51d0fedb7881cc 100644
--- a/slides/ws-video/slides.md
+++ b/slides/ws-video/slides.md
@@ -179,16 +179,16 @@ https://en.wikipedia.org/wiki/Aperture#/media/File:Lenses_with_different_apertur
 
 ## Depth of Field
 
-<img data-src="https://git.noc.ruhr-uni-bochum.de/makerspace/homepage/-/raw/main/slides/ws-video/dof.jpg" width="50%"/>
+<img data-src="https://git.noc.ruhr-uni-bochum.de/makerspace/homepage/-/raw/main/slides/ws-video/dof.jpg" width="75%"/>
 
 |||
 
 - Shallow depth of field <br>
 Long focal length <br>
-Iris wide open f1.4
+Iris wide open -> f1.4
 - Deep depth of field <br>
 short focal length <br>
-Iris more closed
+Iris more closed -> f22
 
 |||