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Photos with my new usb microscope (20X-400X 1.3MP Digital Microscope)

I have been quite pleased with my previous microscope but I decided to buy a slightly better one from dealextreme as double the magnification was available for only a slightly higher cost.

product link) It only cost $48.20 USD (about £31.27 GBP) only $8 than my previous microscope that could only achieve 200x!

20X-400X 1.3MP Digital Microscope

20X-400X 1.3MP Digital Microscope


20X-400X 1.3MP Digital Microscope with nice markings of the magnification

20X-400X 1.3MP Digital Microscope with nice markings of the magnification

Quick Review
Advantages

  • Large dynamic zoom range (labelled 20x – 400x)
  • Easy to setup (plug and play)
  • Can take some awesome photos, see below
  • Variable illumination settings (using a wheel at top)
  • Rubberised casing gives better grip and good overall feel
  • Much improved build quality over the digimicro
  • Stand is sturdy and can hold camera still in place

Comparison to the digimicro

Digimicro vs New Microscope

Digimicro vs New Microscope


Comparison of microscopes at minimum zoom level

Comparison of microscopes at minimum zoom level


Comparison of microscopes at maximum zoom level

Comparison of microscopes at maximum zoom level

Magnification measurement
The images are taken with the edge of the camera case pressed right up against the ruler. You could probably remove casing to increase zoom slightly, or create a slot to slide a microscope slide into it. The camera has two focuses the first:

First focal point of microscope

First focal point of microscope

And the second (maximum zoom):

Second focal point of microscope (0.5mm spacing between lines)

Second focal point of microscope (0.5mm spacing between lines)

6mm displayed over 170mm: zoom ~ 30x
0.5mm displayed over 180mm: zoom ~ 360x

This isn’t far off the specified 20x – 400x so I am happy! (Note: Measuring magnification level is rubbish as it depends on screen the image is viewed on, so viewing it on a projector would make the statistics seem more impressive.)

The minimum zoom is less than this as we can move the camera further from the object

Setup in Linux

The beauty of this webcam is that it requires no installation with ubuntu 10.04 you simply need to run the software and the camera works! woo! The output of `lsusb` shows the device as:

Bus 001 Device 004: ID 0ac8:3610 Z-Star Microelectronics Corp.

Software
Most video programs will pick up the device, I am opting to use a program called cheese which is awesome not only because of the name but also because of its simplicity.

sudo apt-get install cheese

Bonus Picture

This is a photo of the pixels on a nexus one phone to show the pentile pixel layout

Nexus One Screen Under the Microscope

Nexus One Screen Under the Microscope

As before any requests for microscope images (within reason) will be considered 🙂

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