1. Usb Microscope: Factors when Purchasing a Microscope
Digital Usb Microscope Professionals
A microscope is an instrument for viewing. This apparatus is usually used in scientific fields
because most of the time the objects in these fields are microscopic. For instance, the
equipment is very common in studying living organisms because these organisms have
biological makeup which are impossible to view without using an advanced viewing
apparatus like a microscope.
History
The first ever microscope was developed in the 1500s when glasses from telescopes were
used to view small objects. Galileo also helped modernized the early microscope. He used
convex lens and concave lens to give the instrument more power in viewing small objects.
Meanwhile scientists Robert Hook and Antonie Van Leeuwenhoek were the first people to
use the instrument in viewing biological objects and this help popularized the instrument
further. Due to the significant discoveries through the use of microscope, manufacturers
began to modernize the instrument so it could be used extensively in research. Right now,
there are many types of microscopes to choose from and each carry specific purpose.
What to Consider When Buying a Microscope
When purchasing a microscope, it is important to approach it with caution. After all, these
instruments are quite expensive to procure and maintain. When purchasing, make sure that
you consider your need so as not to overestimate or underestimate your purchase. For
instance, if you are going to use it at home for school purposes, you can purchase a basic
type since this will be enough to provide for your needs. For more advanced research, high
end microscopes which are capable of high levels of magnification is the right instrument for
this particular need.
In addition, you should also consider features in these instruments which you will find useful
in your research. For instance, there are instruments which can be attached to computers
using a USB. This is very effective when you are viewing several specimens in a day. With
the help of a USB connector, you can now store images of your research in your PC.
Lastly, make sure that the construction of the instrument is durable. Since this is considered
an investment, it is important that the microscope can last a lifetime. But since wear and tear
cannot be avoided even in this delicate instrument, it would be wise to consider a warranty
from the manufacturer in case something is broken along your research.
Buying a microscope can be confusing especially to the uninitiated or for first time buyers
which is why it is important to read and study the different aspects of the instrument. Today,
there are so many types of microscope in the market. By studying the basics of microscope
and its function, will be the only time one can purchase the right instrument.
http://www.digital-usb-microscopes.com

2. Below is an overview of topics which you will encounter when purchasing a microscope.
Read and understand them in order to make the right purchase.
Compound or Stereo
Compound microscopes are used in advanced applications due to the high levels of
magnification it provides. Blood samples, bacteria, and other small object are usually studied
under a compound microscope. These specimens require high powered magnification which
only a compound microscope can provide. A compound microscope can have 3 to 5 lenses.
These lenses can magnify objects up to 100x.
Meanwhile, stereo microscopes are used to view small objects. Leaves, rocks, gems, and
insects only require basic magnification. Stereo microscopes when compared to compound
microscopes is just average. Their lenses have range from 6.5x to 40x.
Quality
Quality of the instrument is very important to consider when purchasing so as to avoid
spending top dollars on mediocre apparatus. Usually, microscopes made in Germany and
Japan are the most sought after because their quality is topnotch however, they are
expensive to procure too. If your budget is limited, there are budget friendly microscopes with
amazing quality too but they may lack features which are basic in high end microscopes.
Apart from the overall construction, it is important to consider the optical quality as well.
Objective lenses and the eye pieces must be reliable so as to view the images properly. For
example, an achromatic lens is already enough because it can correct colors and enhance
images of the specimens. However, there is a much higher lens than the achromatic called
plan objectives and this is used in advanced applications because they produce quality and
flatter images.
After sales Service
To get the best value ask for a warranty. A good instrument must come with a warranty from
the manufacturer or distributor.