3.5X-90X Trinocular Stereo Zoom Microscope LED light UV glass 2.0X and 0.5X Objective Lens 415MM*290MM aluminum alloy Red pad Optional 2.0MP VAG Camera or 14/16/21MP HDMI Camera

It is synchronous, what you can observe are shown at the same time as the camera display.

Features:
7X-45X Extremely Large Zoom Magnification Power
Trinocular Design for High Quality Photo, USB PC and CCD Video Imaging
Erect Stereo Sharp Images Over a SUPER Widefield of View
Accurate Alignment Ensuring Fatigue-Free Long Time Viewing
Crystal Clear Original True Color Images
45 Inclined Trinocular Head with SUPER Widefield High-Eyepoint Eyepieces
30mm SUPER Widefield Eyepieces (see the difference in the above picture)
Both Ocular-Tubes with Adjustable Diopter
Adjustable Interpupillary Distance
Full Optical Glass Elements
Precise Ground Glass Lenses
4" (100mm) Extremely Large Working Distance
Versatile Boom Stand Covering Large Working Area
Double-Arm Design for 3-Degree Freedom
Able to Place Microscope Head Toward to Any Direction
Heavy-Duty Cast Steel Stand Finished with Stain Resistant Enamel
Rugged Solid Cast Steel Base
30mm SUPER Widefield Eyepieces Included
165mm and 30mm working distance auxiliary objective

Specifications:
Head: 45 inclined 360 swiveling trinocular simul-focuse head
Eyepiece: 30mm super widefield high-eyepoint WF10X/20mm
Objective: 0.35-9.0X
Auxiliary objective (option): SZM 0.5X & SZM 2.0X
Zoom Range: 6.4:1
Diopter Adjustment: 5dp
Interpupillary Distance: 2-3/16" - 2-15/16"(55-75mm)
Field of View: 2-1/2" (65mm) in diameter
Working Distance: 4" (100mm)
Boom Stand: 20" double-arm (overall length: 30"), 17" high pillar, 10-1/4"x8-1/4"x2-0" solid cast steel base

Package List:
1x 7-45X Trinocular stereo microscope
1x 415MM*290MM aluminum alloy Red pad (Microscope fixed base)
1x Optional 2.0MP VAG Camera or 14/16/21MP HDMI Camera
1x Dust Cover
1x LED light
1x 2.0X and 0.5X Objective Len
1xUV glass