Coaxial lens actuator - MPS Micro Precision Systems AG
Amazon.com: HD 1000X Zoom Stereo Industry Lab Digital Microscope Camera Coaxial Light Monocular C-Mount Zoom Lens : Electronics
Two plano - convex lenses of focal lengths f and 2 f are coaxially separated so that the spherical aberration is minimized. The effective focal length of the combination is :
Zoom Lens with Built-in Coaxial Light - Mvotem Optics
Electric Zoom Focusing Coaxial Lens NAVITAR ZOOM6000 1-6010 1-62315 1-60439 Used | eBay
NT01AM variable diameter lens holder/coaxial lens holder/optical adjustable lens holder/three-jaw support professional lens ring
Consider a coaxial system of two thin convex lenses of focal length f