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Veho Discovery DX-1 USB Digital 2 Mega Pixels HD Microscope | x200 Magnification | Photo/Video Capture & Record | Adjustable Stand | MicroCapture Software | Apple Mac Compatible (VMS-006-DX1)
|Price:||& FREE Shipping|
|Light Source type||LED|
|Item Dimensions LxWxH||4.33 x 2.76 x 0.49 inches|
|Magnification Maximum||200 x|
About this item
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- 2 Mega pixels HD CMOS lens - 1920x1080 resolution
- 100x - 200x digital magnification
- High speed DSP
- Compatible with latest Windows & Apple Mac of
- 8 LED light source
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From the manufacturer
Veho Discovery DX-1 USB Digital 2MP Microscope
With up to 200x magnification the handy DX-1 USB microscope is perfect for home and educational use. The DX-1 ships with alloy cradle stand and calibration software.
The DX-1 comes with a fully adjustable cradle arm, remove to easily convert to a handheld microscope.
Video & Stills
Snapshot and video recording up to 1920 x 1080. Lit by 8 built-in LED lights.
Ready to go, easy to use
The Veho DX-1 Microscope has everything you need to start, including Calibration software.
|DX-1 Digital Microscope||DX-2 Digital Microscope||DX-3 Digital Microscope||VMS-001 Digital Microscope|
|Lens||-||5G+IR CUT||5G+IR CUT||-|
|Controller||High Speed DSP||High Speed DSP||High Speed DSP||High Speed DSP|
|Video Capture||Up to 1920x1080||Up to 2592x1944||Full HD 1080P||Up to 1280x960|
|Light Source||8 x built-in LED lights||8 x built-in LED lights||8 x built-in LED lights||4 x built-in LED lights|
|Magnification||10x or 200x||10x or 300x||10x or 220x (up to 2000x digital zoom)||20x or 200x|
|Operating System||Windows 7/8/10 & Mac OS 10.12+||WindowsXP/Vista/7/8/10 & Mac OS 10.12+||Windows 7/8/10 & Mac OS 10.5-10.13||Windows 2000, XP, Vista, Windows 7 & Mac OS 10.5+|
Compare with similar items
With up to 200x magnification The handy dx-1 USB microscope is perfect for home, commercial and educational use. The Veho dx-1 comes with a fully adjustable cradle arm, remove to easily convert to a handheld microscope. Snapshot and video recording up to 1920 x 1080 with 8 LED light source. The dx-1 is easy to set up and use and is compatible with the latest Windows and Apple Mac operating systems.
Top reviews from the United States
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There is a cylindrical drum you can twist for focusing the microscope. As you turn it an internal lens moves up and down the barrel, changing the distance to the specimen. On the drum, there's a scale, with markings from 20 to 400 on it, that is quite misleading -- it suggests that you can optically zoom continuously from 20x to through 400x. But that is not the case. Instead, there are two fixed magnification levels, one nominally 20x and one about 400x, corresponding to two different focus locations, and they do not correspond to the locations on the scale you would expect!
Using it at 20x power:
If you place a specimen, like a piece of paper, directly under the microscope and place the clear plastic end of the microscope directly on the paper, the 20x focus occurs when you turn the drum beyond the top of the scale, past the 400, then a little past the 20 mark as the scale starts repeating. At this focal point the internal lens is moved up the tube, far from the specimen. The field of view is 13.5 mm. You can then move the microscope farther from the paper, readjusting the focus as necessary. You can even move the microscope quite far from the specimen, and still be able to focus it with 20x magnification. When it is focused at infinity, (at the extreme end of the scale, about 60 over the top), the field of view is 11.2 degrees, or about 3" wide when the subject is 12" from the end of the microscope.
Using it at 400x power:
To get the the 400x magnification, again place the clear plastic end of the microscope directly on the specimen, say a dollar bill. The 400x focus location occurs when the drum is rotated beyond the bottom of the scale, to the 400 below the 20 mark. At this point, the internal lens is moved down the tube, to nearly as close to the specimen as it can get (about 22mm). The field of view is only about 0.8 mm, or 2 degrees. Most users would never notice that the microscope can focus at the 400x magnification: to attain it you must move the focus lens to nearly the full bottom of its travel; it is easy to go through the focal region too quickly to see it; and the documentation makes no mention of it. People may think the higher magnification is obtained by zooming in digitally on your computer screen, without realizing that the microscope focuses with high magnification itself. You'll need to turn on the LED illumination for the 400x scale to get an image. (There are eight white LEDs that provide good even illumination, not four as advertised.)
As well as these two focus regimes, there is a software zoom option. If you choose a capture size of 640x480 you can go to the preferences menu and choose zoom to zoom in digitally. The field of view zooms from 13.5mm down to 4.2 mm.
Measuring actual magnification:
The 20x and 400x are only approximage values, but you can measure the actual magnification by viewing a millimeter ruler or finer reticule if you have one. If the image capture size is set to 1280x960, I find that the width of the field of view is 13.5 mm at the "20x" focus, and about 0.8 mm at the "400x" focus. (about a 17x difference) The resolution, that is, the size of a single pixel in the field of view, is 13.5mm/1280= 10.5 microns for the "20x" focus, and 0.8mm/1280=0.6 micron for the "400x" focus. (Of course, the optics aren't perfect, and it appears to me that at the "400x" focus the optical resolution is about 3 pixels, that is, the smallest features you can see are about 2 micron in size. The magnification you see on your computer screen depends on the screen pixel size, also called the pixel pitch. Mine is 0.282 mm (or 90 pixels per inch, most LCD screens are 90-100 pixels/in.). For my screen, the two actual magnifications are then, 1280*0.282mm/13.5mm = 26.7x and 1280*.282mm/0.8mm = 451x. This is for viewing on the computer screen at "actual size", not zooming in.
Measuring object sizes:
The software allows you to measure objects with rulers you can draw over a picture, but you need to enter the actual magnification to calibrate the software ruler. They suggest you take that reading from the scale on the microscope, but there's so much up and down play in the focus drum that you can't rely on its readings for the true magnification. It's best to calibrate the field of view by taking a picture of a millimeter ruler. Then you know what true size the full width of the captured image corresponds to. That works well for the appx. 20x focus point. Unfortunately, the magnification box allows entry of only integers up to 220, so you can't enter an actual magnification, like 451, to get accurate numbers.
Even so, you can measure object sizes and do the math yourself. In particular, you can use the software ruler to measure sizes in pixels with a magnification factor of one, and get an accurate pixel measurement.
The software lets you save the images in uncompressed *.bmp or compressed *.jpg file formats. You can choose the level of compression for the *.jpg files; remarkably, the 3.7 MB files (1280x960x3bytes) can be compressed to about 100KB without much loss of resolution.
Despite the ad hype, the sensor is not a 2 megapixel (Mp) sensor -- the spec sheet in the instruction manual says it is 1.3 (Mp). The maximum resolution is attained when you choose an image size of 1280x960 = 1.23 Mp. Although there is an option for capturing images at 1600x1200, those images are interpolated, and don't result in any greater actual resolution.
With these considerations in mind, you'll find that this microscope is a great value for the money, and you can take some really good photomicrographs with it.
The stand it comes with I found to be annoying, so I tossed it and attached it to a goose neck with a heavy base. While that works better, it's still difficult to focus because it shakes and the focus knob takes a little bit of pressure to turn, which effects the focusing. For example, when you take your hand away from the knob, you may lose the focus because the scope moves, and even just a little movement effects the image.
On line I've seen stands for this thing where you put the scope into it and you move the stand, but I haven't personally tried it.
If I can figure out a way to move the subject matter closer to the scope, instead of the scope closer to the subject, it would be easier a lot easier to focus on the image. Maybe I could attach it to something really heavy so it has zero shake.
On the other hand, you can move it around which comes in handy. For instance, I can use it to look into my cats ears as long she's still. I can look into my own ears, too, though it's limited. It's not like at the doctors. So, if you add a USB extension cord to this, if it;s long enough, you can walk around the whole house looking at stuff. It doesn't need to stay on a desk.
Also - keep in mind that this scope only has two focal points: 20x and 400x. Not everything in between.
Colors are true, at least for greens, browns, clears/translucents and yellows. That's all I dealt with.
20x and 400x fixed focus only....There is NO zoom here. Focus is at either extreme end of the focusing travel of the focusing knob. A little free play allows fine focusing at either 20x or 400x. Both magnifications are only approximations from a crudely calibrated and marked focus knob.
There are 6 LEDs that light up the items with strong naturally looking white light that is also adjustable from full-on to full-off and anywhere between. The light strength adjustment knob barely extends out from the body and is somewhat a pain to dial in.
COMPLAINTS: Focus knob really difficult to use while trying not to move or shake it much. Same goes with the LED light level adjustment.
Software easy to load, works as advertised (but NOT zoom) and seems solid enough. May be a type of metallicized plastic alloy but seems solid enough with gentle care. Its not a toy nor can it be considered a professional quality microscope. But it does take amazing pictures for seventy bucks or so. Can't complain. It does what I've needed.
Top reviews from other countries
The information both on their package and also in the instruction booklet included with the microscope states that the software (Micro Capture Plus) provided on the CD or downloaded via Veho’s Download website is compatible with Mac OS X 10.12 or later. In fact, Mac OS X 10.14 or later is required. Furthermore, downloading the application from their website is blocked on Apple computers even when running Mac OS X 10.14 and higher as it is not an Apple approved application. Direct contact with Veho Customer Service did not provide either an explanation for this misinformation or a solution to the problem. I suspect the problem is more related to Apple marketing pressure on Veho but Veho have a responsibility not to recommend their product to Apple device users.
Even when one takes into account the comparatively low price of this microscope the quality of the images is incredible.
I have been using this to investigate plant diseases, and also to identify plant pests.
The images are very well lit due to the ring of LED lights, and very detailed.
This is now in my laptop bag most of the time, and when training being able to see aphids giving birth on screen etc is amazing.
When examining wet or otherwise reflective things, you will also to see a reflection of the microscopes illumination LEDs. Often you will see many reflections ... one from each surface in the image.
The 400x magnification is difficult to employ usefully. This is because at such magnification the area in view and the depth-of-field are both tiny and therefore it is very hard to find, and very easy to lose, sight of the target object. Ideally you would have the microscope firmly held in a retort stand and the retort stand firmly mounted on some sort of X-Y-Z sliders. Alas, such a stand and sliders would probably cost far more than this microscope.
I bought the microscope for examining electronic circuit boards. In this role having the Veho VMS-004 microscope is much better than not having any microscope, but issues with depth-of-field, illumination, and reflections mean that a better instrument would still be welcome.
The stand provided with the microscope isn't heavy enough to hold the microscope in position unless you balance everything well and therefore it is mostly not useful, especially at the higher magnification.