AmScope MU500-CK \u200b\u200b5MP Microscopio USB de la c-mara, Software, kit de calibraci-n
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Descripción del producto
-Esta c-mara digital de 5MP microscopio, con su dise-o independiente -nico, viene con un lente de reducci-n, un cable USB, dos adaptadores y un kit de calibraci-n. La c-mara digital captura im-genes fijas de microscop-a, arroyos v-deos en vivo en sus computadoras, y es compatible con Windows XP / Vista / 7/8, Mac OS X y Linux. El software f-cil de usar para Windows ofrece funciones avanzadas que incluyen costura, EDF (gran profundidad de foco), grabaci-n de v-deo y funciones de medici-n. Video en vivo y captura de im-genes fijas se pueden ajustar en diferentes resoluciones simult-neamente. La lente de reducci-n 0,5X da mayor campo de visi-n. Usted puede editar y procesar im-genes de una manera similar a PhotoShop. El software independiente y el kit de calibraci-n incluidas le permiten tomar notas, formas, marcas de agua, y las mediciones precisas con facilidad. Usted puede analizar, presentar y compartir las im-genes de muestras y espec-menes con s-lo conectar un extremo en el puerto USB 2.0 de su ordenador, y el otro en el ojo-tubo de su microscopio o puerto trinocular. Presentando adaptador incorporado la compatibilidad y la reducci-n de 23 mm de la lente de montaje C, nuestra c-mara se puede conectar a cualquier instrumento con un C-mount o un 23 mm, un 30 mm y un puerto de 30,5 mm de fotos. La c-mara est- equipada con un sensor CMOS de color, y viene con un cable de alta velocidad USB 2.0, cuatro tama-os de montaje (23 mm, 30 mm, 30,5 mm, y C-mount), y las instrucciones. Especificaciones de la c-mara Sensor: CMOS Aptina MT9P001 (color) Tama-o del sensor: 1 / 2,5 en (5.70mm (H) x 4.28mm (V), 7.13mm diagonal) Resoluci-n:. (2592x1944 p-xeles) approx.5,040,000 lente de reducci-n: 0.5X Pixel Tama-o: 2.2 & # 181; mx 2.2 & # 181; m G Sensibilidad: 0.53v / lux-seg (550 nm) Frame Rate: 60fps @ 640x480, 18fps @ 1280x960, 5 fps @ 2592x1944 exposici-n: 0,21 ~ 2000ms, retorno de la inversi-n autom-tica y manual Modo de escaneo progresivo de rango din-mico: 66.5dB convertidor
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What struck me most was a truly insane amount of chromatic aberration (CA - complementary color smearing at opposite edges of highlights) occurring with this camera. I suspected the AmScope C-mount adapter at first, but the aberration persisted when this camera was attached to the Leica C-mount and it was not present when I connected my mirrorless body via the AmScope C-mount/eyepiece adapter. I thought maybe I had found the problem when I noticed that this camera's IR filter was covered with a "haze" of some kind of manufacturing residue - felt like silicone sealant or etc. - but carefully cleaning that filter with spec-grade alcohol hardly changed anything (and it was perfectly clean). I don't know what was happening, but somehow this setup gave me a crippling amount of CA that evidently came from the camera. It was also subject to quite a lot of blooming, and generally did not seem to live up to the stated dynamic range.
I took a lot of images during this testing, with lots of camera setting variation, so I'm convinced that the issue was optical and/or in the embedded processing rather than user error or unoptimized conditions.
Another issue that might itself have caused me to return the camera was that it would randomly and somewhat frequently disconnect itself from the USB bus in the midst of live view and/or image acquisition. This happened regardless of the presence/absence of a hub, on every USB port that I tried, and has never happened to me with other devices. I tried lowering the preview resolution and the preview frame rate, but even at the minimum values I was still getting disconnects. The device simply dropped off the bus, reappeared a few seconds later, and when it did I had to restart the preview acquisition stream and probably reset some of the camera settings. Quite frustrating!
I also noticed that when I calibrated the system resolution for various magnifications on my scope, it never quite worked. I could specify a (say) 1mm line as the reference for a given mag, save that, set the mag to the value that I just calibrated, and measuring the same line again would give a value quite different from 1.0mm. I've done this before, on several different scopes & software suites, so I'm pretty sure it was a software bug.
I really wanted to like this camera, and I really tried to - probably well beyond when I should have given up. Unfortunately it just didn't perform. I've since acquired a nominally deprecated ScopeTek camera from maybe 2009, and while the software is pretty poor everything else about the camera is much more acceptable for routine imaging. Quality is still much better from my mirrorless body - even heavily vignetted by a 1.0x or 0.5x C-mount - but the old (cheap) camera is at least usable day to day. This one just wasn't.