High Mag Zoom Lenses

World’s first 6.5:1 ratio parfocal zoom lens
Variable working distance from 45 to 95mm
Unbeatable accuracy
Field of view from 2mm to 25mm with attachments.
Depth of field (mm) for low(6.5) – high (0.22).
Work with ¼" , ⅓" and ½" format camera
High Definition, Ultra-low distortion design.

Definition of Term

Field of View The area visible thought a lens or a lens system.
Depth of Field The distance allowing acceptable image definition to be maintained without refocusing
Distortion Distortion is a variation in magnification across the field of view.
Magnification A measure of the apparent differences in size between the object and the image
Depth of Focus The distance along the optical axis at which the image is in focus
Numerical Aperture The largest cone or number of light rays that can enter a lens system
Resolution The ability of a lens system to image closely spaces points, lines and object surface as separate    entities.
Working Distance The clearance or distance between the object and the first surface of a lens system. Affects
   the users’ ability to image and manipulate the sample at the same time
Object to Image Distance Total distance from the object to the sensor inside the camera