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Sharmman 24/09/2021
I calculated max zoom options using a copper wire of 0.59mm dia and min distance from object 10mm where is focus limit. At max analog zoom dimension of wire dia was 48mm with no distortion at HD resolution and result is 81,5 max analog zoom. Max digital zoom was measured around 180 but it distorts object's aspect ratio so it's not advised. Excellent for soldering SMD parts with 12-15 zoom in at 7cm distance between object & microscope head where leds illumination is sufficient with approx 10 degrees declination from vertical axe with +1 resolution. Just shave less than a 1mm of bottom surface of m-USB connector or use another one thicker and also resolution and screen are just fine and works flawlessly. In headlines a descent up to 80 analog zoom camera/magnifier using 7 inch screen , highly recommended for working with SMD parts and micro machines but nothing to do with a real microscope of declared 1200 magnification that's why it gets 4 stars.
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