The BTW1-214-RLED LED Microscope with 8" Detachable LCD Tablet from National is a four-objective microscope with a 45° inclined binocular viewing head. The four objectives are 4x, 10x, 40x, and 100xR. They are located on rotating turret with a ball bearing mount. Both the turret and the included objectives adhere to the DIN microscope objective standard. Therefore, you can use any commercially available DIN objective with this microscope without worrying about it ever becoming obsolete. The microscope features achromatic lenses which reduce color distortions introduced by imperfections in optical elements. Reducing these color distortions allows you to see sharper images with better color fidelity. The parfocal and parcentered design allows for switching objectives without having to realign your sample and without losing focus. The Wi-Fi digital tablet transmits live images to iOS or Android devices. Use it as a conventional microscope or share live images with colleagues using Wi-Fi tablets, wireless laptops, and wireless devices.