AmScope SM05 0.5X Barlow Lens For SM Series Stereo Microscopes (48mm)

llego en el tiempo requerido y buen estado

I'm using this on a 50-year-old AO StereoStar stereoscopic microscope. My scope has a 47mm thread, so I had to 3d print a 47mm to 48mm adapter.The lens gives me a much larger distance from what I'm working on, a larger field of view, and the picture quality is superb.This is a great value for the money.

Works

i received the product very quickly…faster than I imagined and it was as I hoped for. Thanks

Works for my SM2 Thanks

Works fine but not sure how much I will use it. Good to have.

This is what you need if you're doing SMD soldering under the microscope. It increased the working distance between the bottom of the microscope and focal plane to about 165mm or so. Even though it reduces the magnification by half, you still have plenty of magnification for soldering and inspection needs. I think this barlow lens increases the working distance enough that you wouldn't need the 0.x35x lens to increase it further.I didn't note any obvious degradation in the image quality; the edges of the fields still appear to be in focus and it didn't seem to add any chromatic aberration.At least on my Amscope microscope, the LED illuminator ring is affixed above the original microscope objective lens, so it's possible to unscrew the barlow lens without much of a fuss if you find that you need more magnification. For my application, I've not needed to do this.

Installing the Barlow lens was kinda tedious .. the threads are very fine .. I pulled the head out of the mount and finally got it threaded in. The tolerances are very tight, which is fine .. just take extra care. The working distance is barely adequate, with both the rack and boom all the way up. I did loose maybe a quarter inch by adding a UV protection lens, to keep smoke and splatter out of the scope itself. On Amazon .. Fotodiox Metal Step Up Ring, Anodized Black Metal 48mm-49mm, 48-49 mm, and, Tiffen 49mm UV Protection Filter. For $15 bucks .. cheap insurance to keep "stuff" out of the scope lenses proper. I'll probably make a "riser" to raise the vertical column bar a couple of inches. Cheers!