Today there are two major types of electron microscopes used in clinical and biomedical research settings: the transmission electron microscope (TEM) and the scanning electron microscope (SEM); sometimes the TEM and SEM are combined in one instrument, the scanning transmission … Continue reading →

You will have to multiply the eyepiece magnification by the objective magnification to find the total magnification before dividing the field number. For instance, if your eyepiece reads 10X/22, and the magnification of your objective lens is 40. What is … Continue reading →

Formalism is divided into two branches Russian Formalism and New Criticism.Formalism is divided into two branches Russian FormalismRussian FormalismRussian formalism was a school of literary criticism in Russia from the 1910s to the 1930s.The movement’s members had a relevant influence … Continue reading →

Formalism describes the critical position that the most important aspect of a work of art is its form – the way it is made and its purely visual aspects – rather than its narrative content or its relationship to the … Continue reading →

Telephoto lenses The field of view on this type of lens is narrower than others, but by using a telephoto lens with a second lens and a sensor, your phone’s camera can get closer to the action without any moving … Continue reading →

Eyepiece Lens: the lens at the top that you look through, usually 10x or 15x power. Tube: Connects the eyepiece to the objective lenses. Arm: Supports the tube and connects it to the base. Base: The bottom of the microscope, … Continue reading →

In order to ride a mount, you must first have one set as your “active mount” which can be done from the Collections tab on the game menu. Now that a mount has been selected as “active,” your active mount … Continue reading →

Sph (sphere) – a positive number here indicates that you’re long-sighted, while a negative number indicates that you’re short-sighted. Is plus long-sighted? A typical prescription has three numbers such as -5.00 / -1.50 x 180. The first number (-5.00) of … Continue reading →

Mirrors reverse the direction of the image in an equal yet opposite angle from which the light shines upon it. This allows the viewer to see themselves or objects behind them, or even objects that are at an angle from … Continue reading →

With proper handling it is unlikely you will encounter problems. When you have a heavy lens mounted to a camera body, e.g., a 400mm f/2.8 at 8.5 pounds, you cannot physically support the camera/lens by the camera body alone. Can … Continue reading →

Some amateur photographers use the term “telephoto lens” as a synonym for “zoom lens.” In truth, these two lenses are not identical. A telephoto lens has a long reach—traditionally this means a focal length of 60mm or more—but it does … Continue reading →

A 2″ eyepiece will have a larger field stop than a 1.25″ giving you a wider field of view. Typically this would be for eyepieces 30 – 40mm focal length. Usually you only need one eyepiece in this range for … Continue reading →

Since the field of view and spatial resolution are decided for each objective lens, select the objective lens referring to it. Advance measurement from low magnification to high magnification. After making a series of measurements, perform the main measurement by … Continue reading →