Working Distance and Focal Length Basics 

Thank you for the video! I enjoyed seeing the effect of adjusting the camera on the quality of the images at different parts of the target.

Ever use differential screw assembly to gain very fine adjustment. Another very useful machine process is designing in a living hinge. It can be done for all three axis adjustment. Additionally it will enable a very high natural frequency to yield fine focus when motors are in the environment.

Hi Nick. Thank you for this good technical video. But can you recommend me a manual teleconverter to extend my bridge camera, {camera is Chinese product with 8M, and it is 4k for photos, and HD for video, with 30mm manual lens, f.1.6 and optical magnification 20x times and digital zoom 4x times}.I need this extension for the night-sky, because the zoom creates aberration for objects being far away. Thanks again, and I am awaiting for your response..

Hi, I was wondering, what is the possibility of using the Dome diffuser and a beam splitter to cover the shadow hole in the dome. How good would it work?

What is the point of zooming in past 100% when looking at the star target?

Anyone know were one can acquire a test bench as shown above? Specifically looking for a way to test various cameras, lenses and lighting options for industrial applications. TIA

Hey Nick. Very nice idea with these kind of videos. Hope more are coming!

You can teach us a lot about optics, but it will be nice if you want to learn a little about microphones and sound

Is Code V optical design system used?

where can we find that star target ?

cooool