By depth-of-focus we're essentially talking about the image plane at the camera sensor, and with a low power objective the camera (sensor) position is much more critical than with a high power objective. Put your slide in and focus very carefully using the 4X or 10X.

EO Auto-Focus M12 S-Mount Lens Cameras feature a compact, aluminum housing, and are ideal for automation, logistics, biometrics, security, and traffic management applications. The included software is designed for both the novice and advanced user alike.

0.5x C-Mount camera adapter (for 1/2" or 2/3" camera chip) Fits 23.2mm diameter eyetube or trinocular tube; Adjustable (focusable) lens inside; Parfocal with different microscope objective lenses ; Note: This adapter does not work with Moticam cameras.

• Corrects Spherical Aberration BETTER than Correction Collared Objectives • Works with ALL Infinity-Corrected Objectives • Color-matched for Zeiss, Leica, Nikon or Olympus—and others

We discuss the design, manufacturing and characterization of a miniaturized zoom camera objective featuring two gravity-immune liquid-tunable aspherical lenses and three spherical glass lenses. The aspherical tunable lenses, which are 3 mm in diameter, 8 mm in nominal focal length and neutral to gravity effects, can be pressuretuned within a ...