# How to achieve (and measure) high NA illumination for microscopy - new paper

**URL:** <https://forum.microlist.org/t/how-to-achieve-and-measure-high-na-illumination-for-microscopy-new-paper/2291>\
**Category:** Theory\
**Created:** [October 17, 2023, 3:19pm UTC](https://forum.microlist.org/t/how-to-achieve-and-measure-high-na-illumination-for-microscopy-new-paper/2291 "2023-10-17T15:19:38Z")\
**Posts on this page:** 1\
**Page:** 1

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**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:** [October 17, 2023, 3:19pm UTC](https://forum.microlist.org/t/how-to-achieve-and-measure-high-na-illumination-for-microscopy-new-paper/2291/1 "2023-10-17T15:19:38Z")

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You may be interested in my latest publication on the subject, just out - here:  
[https://doi.org/10.1111/jmi.13237](https://doi.org/10.1111/jmi.13237)

Basically, I explain new ways to generate high NA illumination (and new ways to measure the NA of illumination) using a piece of paper. So, I suppose you could say, I just published a paper about a piece of paper. Enjoy.

I’ll be making a series of videos to explain the topics covered in the paper on my YouTube channel so subscribe now not to miss them:

> **[PUMA Microscope](https://www.youtube.com/@PUMAMicroscope)**
>
> Welcome to the official channel of the PUMA open source 3D printed multimodality microscope.
> Here I show you how to build and use this microscope and I teach about microscopy and image processing.
> 
> If you like this project please consider becoming a...