# The Fourierfeldblende - and why you might need one

**URL:** <https://forum.microlist.org/t/the-fourierfeldblende-and-why-you-might-need-one/2096>\
**Category:** Announcements\
**Created:** [March 3, 2023, 1:57pm UTC](https://forum.microlist.org/t/the-fourierfeldblende-and-why-you-might-need-one/2096 "2023-03-03T13:57:12Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![P\_Tadrous](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.microlist.org/p_tadrous/32/862_2.png) [@P\_Tadrous](https://forum.microlist.org/u/P_Tadrous)\
**Post date:** [March 3, 2023, 1:57pm UTC](https://forum.microlist.org/t/the-fourierfeldblende-and-why-you-might-need-one/2096/1 "2023-03-03T13:57:12Z")

</div>

The latest open source PUMA microscope video is out and explains the new Köhler adaptor module and its uses. Watch on YouTube:

[![](https://us1.discourse-cdn.com/flex020/uploads/microlist/original/2X/7/7d51afd8eed0faf74cb973cab5a9d0ff40bedde3.jpeg "Daylight Köhler Illumination and the Fourierfeldblende") ](https://www.youtube.com/watch?v=gDGqXsudmgE)