If I press the edge of the microscope flat against a thin piece of paper, I can get only 85x magnification. That's on a 27 inch monitor. Why?

This is a confusing issue and the vendors aren't helping with their 2BazillionX magnification claims. In reality you are looking at focal lengths as far as "real" magnification goes and display size as far as "apparent" magnification goes. For real magnification what we are doing is focusing an image on a sensors surface. If we are closer to the subject we are going to cover more sensor surface with the image. This is measured in aspect ratio. If my focused image is the same size on the sensor surface as the subject itself the aspect is 1:1. If the image size is half the life size it's .5:1, etc. So with a 1:1 ratio a 1" subject would yield a 1" image on the sensor surface. 1:1 is usually considered nirvana for macro (super closeup) photography. You can "blow up" a 1:1 image a whole lot without it blurring. This is where the "monitor size" blather comes in. The more dots (pixels) the sensor had the more I can expand my display and still see good detail in the image. (Take a printed image and a decent magnifying glass and you will see the dots) If I expand my display size too much it will blur to the point it's useless to my eyes because my 'dots' are too far apart. The gist of this is that you change true magnification by moving the focus point (focal plane) closer or farther from the image sensor in the microscope. For the scopes smallest image size (lowest magnification) raise the scope body higher and use the focus/zoom wheel on the scope to focus the image. For the largest image size (magnification) you want to get as close to the subject as you can. Then the maximum "magnification" (display size) you use is simply determined by the number of pixels the sensor has. This scope has 5 million. That's a bunch! The photos you get will display well on a projector screen for an audience. As for true magnification this scope will focus down to the point the clear plastic hood touches the subject. This yields about 67X - which is really good for what you paid. Just a few years ago we would be discussing thousands of dollars (and Celestron products) to get clear images this size. I hope this info helps, it should be useful in understanding the measurement function of the software as well. The measurement function is really great for teaching purposes!

Hi. Is there anyone who want to make an experiment for me? Can you see any algae or any kind of life in a drop of water?

Depending upon the magnification, many "things" can be seen in a drop of pond water. http://www.microworldsphotography.com/Galleries/Microscopic-Creatures/i-cKDFwMC

Can the lighting intensity be varied?

Yes. There is a dial on the USB cord that allows you to adjust the intensity. The dial will allow you to turn the light completely off.

Can the magnification vary between 20X & 200X or is it just two fixed magnifications? For example can you magnify 50X or 80X?

The zoom is continuous, no fixed magnification levels between maximum and minimum.

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描述

🔍 Unlock hidden worlds with pro-level clarity!

VERSATILE 20 X 200 X ZOOM - Effortlessly switch from broad overviews to intricate close-ups with powerful magnification.
CRYSTAL CLEAR 5 MP IMAGING - Capture ultra-detailed photos and videos that bring microscopic worlds to life.
ERGONOMIC HANDHELD DESIGN - Lightweight and portable with an adjustable stand—perfect for on-the-go professionals.
PLUG PLAY PC COMPATIBILITY - Seamlessly connect to your computer for instant viewing, analysis, and sharing.
PRECISION 5 ELEMENT IR CUT LENS - Experience sharper, truer colors with advanced glass optics designed for clarity.

The Handheld Digital Microscope Pro by Celestron features a true 5MP sensor paired with a 5-element IR cut glass lens, delivering sharp, high-resolution images and videos. With a versatile 20x to 200x magnification range and built-in LED lighting, it’s designed for detailed observation of 3D specimens. Lightweight and PC-compatible, this microscope is ideal for professionals seeking precision and portability.

规格

Brand	Celestron
Manufacturer	Celestron, Celestron Acquisition, LLC 2835 Columbia St Torrance, CA 90503
Model	44308-CGL
Model Name	celestron
Product Dimensions	22.86 x 17.78 x 12.7 cm; 648 g
Item model number	44308-CGL
Light Source Type	LED
Compatible Devices	Personal Computer
Special Features	True 5MP sensor to capture and save high-resolution images and videos of your specimens
Mounting Hardware	HANDHELD DIGITAL MICROSCOPE PRO \| Adjustable Stand \| Calibration ruler
Number of items	1
Maximum magnification	200
Minimum magnification	20 x
Maximum resolution	5 MP
Voltage	5 Volts
Power Source	Corded Electric
Batteries Included	No
Batteries Required	No
Material	Plastic
Actual viewing angle	45 Degrees
Does it contain liquid?	No
Includes Rechargeable Battery	No
Is there a timer?	No
Manufacturer	Celestron
Country of Origin	China
Imported By	A&S Creations, 6/7, Ground Floor, West Patel Nagar New Delhi-110008
Item Weight	648 g