Oct 28 , 2020

#### How to Calculate the Magnification of Andonstar Digital Microscope

What is the magnification of Andonstar digital microscope? This is the question that may not be clear to many users. So many friends want to know what the magnification of our product is. Here is a brief explanation from the manufacturer to help you.

We use a formula to express it: the magnification of the objective lens * (the diagonal of the computer screen / ccd or cmos target surface size) = the magnification of the system. Where the objective lens magnification: depending on which magnification eyepiece you are using, the conventional ones are 5, 10, 20, 40, 60, 80, 100, etc. Note that computer screens are generally expressed in inches, so multiply by 25.4 for millimeter units. The diagonal of the computer screen: generally the unit is inches, such as 14 inches should be multiplied by 25.4, the unit is mm; 1 inch = 25.4 mm.

ccd or cmos target surface size: commonly used CCD or COMS have 1, 2/3, 1/2, 1/3, 1/4 inch, conventional Andonstar digital microscope is to use the third eye plus CCD or CMOS to achieve, then if you have bought the traditional 2-purpose stereo, biological, metallurgical microscope; how to achieve it? Neither eliminating the original product, but also to save cost and achieve digital, direct observation products with computer screen, and at the same time protect our eyes, that should be achieved through transformation, until the magnification is closely related to the CCD or COMS target surface size, its size is directly related to the Andonstar digital microscope magnification.

Then let's take a look at the target surface size in the end is what? It is actually the diagonal dimensions of the CCD or COMS that we commonly use, which are 1, 2/3, 1/2, 1/3, and 1/4 inches, with the following dimensions.

1" - Target size is 12.7mm wide x 9.6mm high, 16mm diagonal.

2/3 inch - target surface size is 8.8mm wide x 6.6mm high, 11mm diagonal.

1/2 inch - target surface size is 6.4mm wide x 4.8mm high, 8mm diagonal.

1/3 inch - Target surface size is 4.8mm wide by 3.6mm high, 6mm diagonal.

1/4 inch - the target surface size is 3.2mm wide * 2.4mm high, 4mm diagonal.

So now that we know the CCD or CMOS target surface size, it's easy to know what the magnification of your Andonstar digital microscope is. According to our digital magnification formula: objective lens magnification * (diagonal of the computer screen / CCD or cmos target size) = total magnification.