diff --git a/slides/ws-video/slides.md b/slides/ws-video/slides.md
index 7ecf047e8c3e036a551931d81cd0fe8e24e3c7f6..b4f41561f264627ed4db763f054c362778fa124a 100644
--- a/slides/ws-video/slides.md
+++ b/slides/ws-video/slides.md
@@ -18,9 +18,7 @@
 
 ### Exposure
 
-- Shutter
-- Aperture
-- ISO
+
 
 |||
 
@@ -40,13 +38,19 @@ f-Stop on Photography lenses
 
 <img data-src="https://git.noc.ruhr-uni-bochum.de/makerspace/homepage/-/blob/main/slides/ws-video/Apertures.png" width="50%"/>
 
+|||
+
+### ISO
+
+- Low ISO -> less sensitivity to light
+- High ISO -> more sensitivity to light
+
 ---
 
 ## Lenses
 
-There are two types of lenses.
 - Prime lense with a fixed focal length. No Maginification of the image but a faster apterture.
-- zoom lense with an alternating focal lenght. 
+- Zoom lense with an alternating focal lenght. 
 
 - Canon EF 24-105mm f/4,0 L IS II USM
 - Canon EF 16-35mm f/4,0 L IS USM