+</div>
+</div>
+</div>
+
+<div id="outline-container-sec-4" class="outline-2">
+<h2 id="sec-4"><span class="section-number-2">4</span> Optics</h2>
+<div class="outline-text-2" id="text-4">
+<ul class="org-ul">
+<li>35mm film copying device
+<br/><a href="optics/35mm%20film%20copying%20device/index.html"><img style="width:100%; max-width:500px;" src="
+ optics/35mm%20film%20copying%20device/make.png
+ "></a>
+</li>
+
+<li>Fujifilm X-mount to microscope adapter
+<br/><a href="optics/Fujifilm%20X-mount%20microscope%20adapter/index.html"><img style="width:100%; max-width:500px;" src="
+ optics/Fujifilm%20X-mount%20microscope%20adapter/make.png
+ "></a>
+</li>
+
+<li>Gyroscope stabilizer for binoculars
+<br/><a href="optics/gyro%20for%20binoculars/index.html"><img style="width:100%; max-width:500px;" src="
+ optics/gyro%20for%20binoculars/make.png
+ "></a>