Lens specification:

zoom c-mount lens

zoom ratio: 5:1

magnification: 0.11X-2X （ about 5x-150x on the 21 inch display )

visual field: 3.1mm-66mm

working distance: 55mm—6800mm

with 35mm ring adapter

package including:

1 x camera stand

1 x 150X zoom lens

1 x 35mm ring adapter